1513 lines
44 KiB
C
1513 lines
44 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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* Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
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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 <linux/leds.h>
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#include <linux/idr.h>
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#include <net/ieee80211_radiotap.h>
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#include <net/cfg80211.h>
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#include <net/mac80211.h>
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#include "key.h"
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#include "sta_info.h"
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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 18
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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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#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
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#define IEEE80211_DEFAULT_UAPSD_QUEUES \
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(IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
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IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
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IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
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IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
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#define IEEE80211_DEFAULT_MAX_SP_LEN \
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IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
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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_bss {
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/* don't want to look up all the time */
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size_t ssid_len;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u8 dtim_period;
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bool wmm_used;
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bool uapsd_supported;
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unsigned long last_probe_resp;
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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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/*
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* During association, 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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*/
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bool has_erp_value;
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u8 erp_value;
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/* Keep track of the corruption of the last beacon/probe response. */
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u8 corrupt_data;
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/* Keep track of what bits of information we have valid info for. */
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u8 valid_data;
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};
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/**
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* enum ieee80211_corrupt_data_flags - BSS data corruption flags
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* @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
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* @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
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*
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* These are bss flags that are attached to a bss in the
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* @corrupt_data field of &struct ieee80211_bss.
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*/
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enum ieee80211_bss_corrupt_data_flags {
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IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
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IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
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};
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/**
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* enum ieee80211_valid_data_flags - BSS valid data flags
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* @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
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* @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
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* @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
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* @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
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*
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* These are bss flags that are attached to a bss in the
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* @valid_data field of &struct ieee80211_bss. They show which parts
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* of the data structure were recieved as a result of an un-corrupted
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* beacon/probe response.
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*/
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enum ieee80211_bss_valid_data_flags {
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IEEE80211_BSS_VALID_DTIM = BIT(0),
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IEEE80211_BSS_VALID_WMM = BIT(1),
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IEEE80211_BSS_VALID_RATES = BIT(2),
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IEEE80211_BSS_VALID_ERP = BIT(3)
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};
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static inline u8 *bss_mesh_cfg(struct ieee80211_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_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_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_UNICAST BIT(1)
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#define IEEE80211_TX_PS_BUFFERED BIT(2)
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struct ieee80211_tx_data {
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struct sk_buff *skb;
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struct sk_buff_head skbs;
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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_channel *channel;
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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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/**
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* enum ieee80211_packet_rx_flags - packet RX flags
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* @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
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* (incl. multicast frames)
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* @IEEE80211_RX_IN_SCAN: received while scanning
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* @IEEE80211_RX_FRAGMENTED: fragmented frame
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* @IEEE80211_RX_AMSDU: a-MSDU packet
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* @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
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* @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
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*
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* These are per-frame flags that are attached to a frame in the
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* @rx_flags field of &struct ieee80211_rx_status.
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*/
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enum ieee80211_packet_rx_flags {
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IEEE80211_RX_IN_SCAN = BIT(0),
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IEEE80211_RX_RA_MATCH = BIT(1),
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IEEE80211_RX_FRAGMENTED = BIT(2),
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IEEE80211_RX_AMSDU = BIT(3),
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IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
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IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
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};
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/**
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* enum ieee80211_rx_flags - RX data flags
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*
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* @IEEE80211_RX_CMNTR: received on cooked monitor already
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* @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
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* to cfg80211_report_obss_beacon().
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*
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* These flags are used across handling multiple interfaces
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* for a single frame.
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*/
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enum ieee80211_rx_flags {
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IEEE80211_RX_CMNTR = BIT(0),
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IEEE80211_RX_BEACON_REPORTED = BIT(1),
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};
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struct ieee80211_rx_data {
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struct sk_buff *skb;
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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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unsigned int flags;
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/*
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* Index into sequence numbers array, 0..16
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* since the last (16) is used for non-QoS,
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* will be 16 on non-QoS frames.
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*/
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int seqno_idx;
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/*
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* Index into the security IV/PN arrays, 0..16
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* since the last (16) is used for CCMP-encrypted
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* management frames, will be set to 16 on mgmt
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* frames and 0 on non-QoS frames.
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*/
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int security_idx;
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u32 tkip_iv32;
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u16 tkip_iv16;
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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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struct rcu_head rcu_head;
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};
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struct ieee80211_if_ap {
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struct beacon_data __rcu *beacon;
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struct sk_buff __rcu *probe_resp;
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struct list_head vlans;
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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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atomic_t num_sta_authorized; /* number of authorized stations */
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int dtim_count;
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bool dtim_bc_mc;
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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 list_head list;
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/* used for all tx if the VLAN is configured to 4-addr mode */
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struct sta_info __rcu *sta;
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};
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struct mesh_stats {
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__u32 fwded_mcast; /* Mesh forwarded multicast frames */
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__u32 fwded_unicast; /* Mesh forwarded unicast frames */
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__u32 fwded_frames; /* Mesh total 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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__u32 dropped_frames_congestion;/* Not forwarded due to congestion */
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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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enum ieee80211_work_type {
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IEEE80211_WORK_ABORT,
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IEEE80211_WORK_REMAIN_ON_CHANNEL,
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IEEE80211_WORK_OFFCHANNEL_TX,
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};
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/**
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* enum work_done_result - indicates what to do after work was done
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*
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* @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
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* @WORK_DONE_REQUEUE: This work item was reset to be reused, and
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* should be requeued.
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*/
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enum work_done_result {
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WORK_DONE_DESTROY,
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WORK_DONE_REQUEUE,
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};
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struct ieee80211_work {
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struct list_head list;
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struct rcu_head rcu_head;
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struct ieee80211_sub_if_data *sdata;
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enum work_done_result (*done)(struct ieee80211_work *wk,
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struct sk_buff *skb);
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struct ieee80211_channel *chan;
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enum nl80211_channel_type chan_type;
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unsigned long timeout;
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enum ieee80211_work_type type;
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bool started;
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union {
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struct {
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u32 duration;
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} remain;
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struct {
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struct sk_buff *frame;
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u32 wait;
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bool status;
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} offchan_tx;
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};
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size_t data_len;
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u8 data[];
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};
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/* flags used in struct ieee80211_if_managed.flags */
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enum ieee80211_sta_flags {
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IEEE80211_STA_BEACON_POLL = BIT(0),
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IEEE80211_STA_CONNECTION_POLL = BIT(1),
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IEEE80211_STA_CONTROL_PORT = BIT(2),
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IEEE80211_STA_DISABLE_11N = BIT(4),
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IEEE80211_STA_CSA_RECEIVED = BIT(5),
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IEEE80211_STA_MFP_ENABLED = BIT(6),
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IEEE80211_STA_UAPSD_ENABLED = BIT(7),
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IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
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IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
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};
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struct ieee80211_mgd_auth_data {
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struct cfg80211_bss *bss;
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unsigned long timeout;
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int tries;
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u16 algorithm, expected_transaction;
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u8 key[WLAN_KEY_LEN_WEP104];
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u8 key_len, key_idx;
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bool done;
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size_t ie_len;
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u8 ie[];
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};
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struct ieee80211_mgd_assoc_data {
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struct cfg80211_bss *bss;
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const u8 *supp_rates;
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const u8 *ht_information_ie;
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unsigned long timeout;
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int tries;
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u16 capability;
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u8 prev_bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u8 ssid_len;
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u8 supp_rates_len;
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bool wmm, uapsd;
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bool have_beacon;
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bool sent_assoc;
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bool synced;
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size_t ie_len;
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u8 ie[];
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};
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struct ieee80211_if_managed {
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struct timer_list timer;
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struct timer_list conn_mon_timer;
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struct timer_list bcn_mon_timer;
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struct timer_list chswitch_timer;
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struct work_struct monitor_work;
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struct work_struct chswitch_work;
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struct work_struct beacon_connection_loss_work;
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unsigned long beacon_timeout;
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unsigned long probe_timeout;
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int probe_send_count;
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bool nullfunc_failed;
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struct mutex mtx;
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struct cfg80211_bss *associated;
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struct ieee80211_mgd_auth_data *auth_data;
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struct ieee80211_mgd_assoc_data *assoc_data;
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u8 bssid[ETH_ALEN];
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u16 aid;
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unsigned long timers_running; /* used for quiesce/restart */
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bool powersave; /* powersave requested for this iface */
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bool broken_ap; /* AP is broken -- turn off powersave */
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enum ieee80211_smps_mode req_smps, /* requested smps mode */
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ap_smps, /* smps mode AP thinks we're in */
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driver_smps_mode; /* smps mode request */
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struct work_struct request_smps_work;
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unsigned int flags;
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bool beacon_crc_valid;
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u32 beacon_crc;
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enum {
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IEEE80211_MFP_DISABLED,
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IEEE80211_MFP_OPTIONAL,
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IEEE80211_MFP_REQUIRED
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} mfp; /* management frame protection */
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int wmm_last_param_set;
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u8 use_4addr;
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/* Signal strength from the last Beacon frame in the current BSS. */
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int last_beacon_signal;
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/*
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* Weighted average of the signal strength from Beacon frames in the
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* current BSS. This is in units of 1/16 of the signal unit to maintain
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* accuracy and to speed up calculations, i.e., the value need to be
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* divided by 16 to get the actual value.
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*/
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int ave_beacon_signal;
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/*
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* Number of Beacon frames used in ave_beacon_signal. This can be used
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* to avoid generating less reliable cqm events that would be based
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* only on couple of received frames.
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*/
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unsigned int count_beacon_signal;
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/*
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* Last Beacon frame signal strength average (ave_beacon_signal / 16)
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* that triggered a cqm event. 0 indicates that no event has been
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* generated for the current association.
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*/
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int last_cqm_event_signal;
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/*
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* State variables for keeping track of RSSI of the AP currently
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* connected to and informing driver when RSSI has gone
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* below/above a certain threshold.
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*/
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int rssi_min_thold, rssi_max_thold;
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int last_ave_beacon_signal;
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struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
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struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
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};
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struct ieee80211_if_ibss {
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struct timer_list timer;
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struct mutex mtx;
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unsigned long last_scan_completed;
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u32 basic_rates;
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bool timer_running;
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bool fixed_bssid;
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bool fixed_channel;
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bool privacy;
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|
|
bool control_port;
|
|
|
|
u8 bssid[ETH_ALEN] __aligned(2);
|
|
u8 ssid[IEEE80211_MAX_SSID_LEN];
|
|
u8 ssid_len, ie_len;
|
|
u8 *ie;
|
|
struct ieee80211_channel *channel;
|
|
enum nl80211_channel_type channel_type;
|
|
|
|
unsigned long ibss_join_req;
|
|
/* probe response/beacon for IBSS */
|
|
struct sk_buff __rcu *presp;
|
|
struct sk_buff *skb;
|
|
|
|
spinlock_t incomplete_lock;
|
|
struct list_head incomplete_stations;
|
|
|
|
enum {
|
|
IEEE80211_IBSS_MLME_SEARCH,
|
|
IEEE80211_IBSS_MLME_JOINED,
|
|
} state;
|
|
};
|
|
|
|
struct ieee80211_if_mesh {
|
|
struct timer_list housekeeping_timer;
|
|
struct timer_list mesh_path_timer;
|
|
struct timer_list mesh_path_root_timer;
|
|
|
|
unsigned long timers_running;
|
|
|
|
unsigned long wrkq_flags;
|
|
|
|
u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
|
|
size_t mesh_id_len;
|
|
/* Active Path Selection Protocol Identifier */
|
|
u8 mesh_pp_id;
|
|
/* Active Path Selection Metric Identifier */
|
|
u8 mesh_pm_id;
|
|
/* Congestion Control Mode Identifier */
|
|
u8 mesh_cc_id;
|
|
/* Synchronization Protocol Identifier */
|
|
u8 mesh_sp_id;
|
|
/* Authentication Protocol Identifier */
|
|
u8 mesh_auth_id;
|
|
/* Local mesh Sequence Number */
|
|
u32 sn;
|
|
/* Last used PREQ ID */
|
|
u32 preq_id;
|
|
atomic_t mpaths;
|
|
/* Timestamp of last SN update */
|
|
unsigned long last_sn_update;
|
|
/* Time when it's ok to send next PERR */
|
|
unsigned long next_perr;
|
|
/* Timestamp of last PREQ sent */
|
|
unsigned long last_preq;
|
|
struct mesh_rmc *rmc;
|
|
spinlock_t mesh_preq_queue_lock;
|
|
struct mesh_preq_queue preq_queue;
|
|
int preq_queue_len;
|
|
struct mesh_stats mshstats;
|
|
struct mesh_config mshcfg;
|
|
u32 mesh_seqnum;
|
|
bool accepting_plinks;
|
|
int num_gates;
|
|
const u8 *ie;
|
|
u8 ie_len;
|
|
enum {
|
|
IEEE80211_MESH_SEC_NONE = 0x0,
|
|
IEEE80211_MESH_SEC_AUTHED = 0x1,
|
|
IEEE80211_MESH_SEC_SECURED = 0x2,
|
|
} security;
|
|
};
|
|
|
|
#ifdef CONFIG_MAC80211_MESH
|
|
#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
|
|
do { (msh)->mshstats.name++; } while (0)
|
|
#else
|
|
#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
|
|
do { } while (0)
|
|
#endif
|
|
|
|
/**
|
|
* enum ieee80211_sub_if_data_flags - virtual interface flags
|
|
*
|
|
* @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
|
|
* @IEEE80211_SDATA_PROMISC: interface is promisc
|
|
* @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
|
|
* @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
|
|
* associated stations and deliver multicast frames both
|
|
* back to wireless media and to the local net stack.
|
|
* @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
|
|
* @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
|
|
*/
|
|
enum ieee80211_sub_if_data_flags {
|
|
IEEE80211_SDATA_ALLMULTI = BIT(0),
|
|
IEEE80211_SDATA_PROMISC = BIT(1),
|
|
IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
|
|
IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
|
|
IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
|
|
IEEE80211_SDATA_IN_DRIVER = BIT(5),
|
|
};
|
|
|
|
/**
|
|
* enum ieee80211_sdata_state_bits - virtual interface state bits
|
|
* @SDATA_STATE_RUNNING: virtual interface is up & running; this
|
|
* mirrors netif_running() but is separate for interface type
|
|
* change handling while the interface is up
|
|
* @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
|
|
* mode, so queues are stopped
|
|
*/
|
|
enum ieee80211_sdata_state_bits {
|
|
SDATA_STATE_RUNNING,
|
|
SDATA_STATE_OFFCHANNEL,
|
|
};
|
|
|
|
struct ieee80211_sub_if_data {
|
|
struct list_head list;
|
|
|
|
struct wireless_dev wdev;
|
|
|
|
/* keys */
|
|
struct list_head key_list;
|
|
|
|
/* count for keys needing tailroom space allocation */
|
|
int crypto_tx_tailroom_needed_cnt;
|
|
|
|
struct net_device *dev;
|
|
struct ieee80211_local *local;
|
|
|
|
unsigned int flags;
|
|
|
|
unsigned long state;
|
|
|
|
int drop_unencrypted;
|
|
|
|
char name[IFNAMSIZ];
|
|
|
|
/*
|
|
* keep track of whether the HT opmode (stored in
|
|
* vif.bss_info.ht_operation_mode) is valid.
|
|
*/
|
|
bool ht_opmode_valid;
|
|
|
|
/* to detect idle changes */
|
|
bool old_idle;
|
|
|
|
/* Fragment table for host-based reassembly */
|
|
struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
|
|
unsigned int fragment_next;
|
|
|
|
/* TID bitmap for NoAck policy */
|
|
u16 noack_map;
|
|
|
|
struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
|
|
struct ieee80211_key __rcu *default_unicast_key;
|
|
struct ieee80211_key __rcu *default_multicast_key;
|
|
struct ieee80211_key __rcu *default_mgmt_key;
|
|
|
|
u16 sequence_number;
|
|
__be16 control_port_protocol;
|
|
bool control_port_no_encrypt;
|
|
|
|
struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
|
|
|
|
struct work_struct work;
|
|
struct sk_buff_head skb_queue;
|
|
|
|
bool arp_filter_state;
|
|
|
|
/*
|
|
* AP this belongs to: self in AP mode and
|
|
* corresponding AP in VLAN mode, NULL for
|
|
* all others (might be needed later in IBSS)
|
|
*/
|
|
struct ieee80211_if_ap *bss;
|
|
|
|
/* bitmap of allowed (non-MCS) rate indexes for rate control */
|
|
u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
|
|
u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
|
|
|
|
union {
|
|
struct ieee80211_if_ap ap;
|
|
struct ieee80211_if_wds wds;
|
|
struct ieee80211_if_vlan vlan;
|
|
struct ieee80211_if_managed mgd;
|
|
struct ieee80211_if_ibss ibss;
|
|
struct ieee80211_if_mesh mesh;
|
|
u32 mntr_flags;
|
|
} u;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct {
|
|
struct dentry *dir;
|
|
struct dentry *subdir_stations;
|
|
struct dentry *default_unicast_key;
|
|
struct dentry *default_multicast_key;
|
|
struct dentry *default_mgmt_key;
|
|
} debugfs;
|
|
#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);
|
|
}
|
|
|
|
enum sdata_queue_type {
|
|
IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
|
|
IEEE80211_SDATA_QUEUE_AGG_START = 1,
|
|
IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
|
|
};
|
|
|
|
enum {
|
|
IEEE80211_RX_MSG = 1,
|
|
IEEE80211_TX_STATUS_MSG = 2,
|
|
IEEE80211_EOSP_MSG = 3,
|
|
};
|
|
|
|
struct skb_eosp_msg_data {
|
|
u8 sta[ETH_ALEN], iface[ETH_ALEN];
|
|
};
|
|
|
|
enum queue_stop_reason {
|
|
IEEE80211_QUEUE_STOP_REASON_DRIVER,
|
|
IEEE80211_QUEUE_STOP_REASON_PS,
|
|
IEEE80211_QUEUE_STOP_REASON_CSA,
|
|
IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
|
|
IEEE80211_QUEUE_STOP_REASON_SUSPEND,
|
|
IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
|
|
IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
|
|
};
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
struct tpt_led_trigger {
|
|
struct led_trigger trig;
|
|
char name[32];
|
|
const struct ieee80211_tpt_blink *blink_table;
|
|
unsigned int blink_table_len;
|
|
struct timer_list timer;
|
|
unsigned long prev_traffic;
|
|
unsigned long tx_bytes, rx_bytes;
|
|
unsigned int active, want;
|
|
bool running;
|
|
};
|
|
#endif
|
|
|
|
/**
|
|
* mac80211 scan flags - currently active scan mode
|
|
*
|
|
* @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
|
|
* well be on the operating channel
|
|
* @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
|
|
* determine if we are on the operating channel or not
|
|
* @SCAN_COMPLETED: Set for our scan work function when the driver reported
|
|
* that the scan completed.
|
|
* @SCAN_ABORTED: Set for our scan work function when the driver reported
|
|
* a scan complete for an aborted scan.
|
|
*/
|
|
enum {
|
|
SCAN_SW_SCANNING,
|
|
SCAN_HW_SCANNING,
|
|
SCAN_COMPLETED,
|
|
SCAN_ABORTED,
|
|
};
|
|
|
|
/**
|
|
* enum mac80211_scan_state - scan state machine states
|
|
*
|
|
* @SCAN_DECISION: Main entry point to the scan state machine, this state
|
|
* determines if we should keep on scanning or switch back to the
|
|
* operating channel
|
|
* @SCAN_SET_CHANNEL: Set the next channel to be scanned
|
|
* @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
|
|
* @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
|
|
* send out data
|
|
* @SCAN_RESUME: Resume the scan and scan the next channel
|
|
*/
|
|
enum mac80211_scan_state {
|
|
SCAN_DECISION,
|
|
SCAN_SET_CHANNEL,
|
|
SCAN_SEND_PROBE,
|
|
SCAN_SUSPEND,
|
|
SCAN_RESUME,
|
|
};
|
|
|
|
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;
|
|
|
|
/*
|
|
* work stuff, potentially off-channel (in the future)
|
|
*/
|
|
struct list_head work_list;
|
|
struct timer_list work_timer;
|
|
struct work_struct work_work;
|
|
|
|
/*
|
|
* private workqueue to mac80211. mac80211 makes this accessible
|
|
* via ieee80211_queue_work()
|
|
*/
|
|
struct workqueue_struct *workqueue;
|
|
|
|
unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
|
|
/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
|
|
spinlock_t queue_stop_reason_lock;
|
|
|
|
int open_count;
|
|
int monitors, cooked_mntrs;
|
|
/* number of interfaces with corresponding FIF_ flags */
|
|
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
|
|
fif_probe_req;
|
|
int probe_req_reg;
|
|
unsigned int filter_flags; /* FIF_* */
|
|
|
|
bool wiphy_ciphers_allocated;
|
|
|
|
/* protects the aggregated multicast list and filter calls */
|
|
spinlock_t filter_lock;
|
|
|
|
/* used for uploading changed mc list */
|
|
struct work_struct reconfig_filter;
|
|
|
|
/* used to reconfigure hardware SM PS */
|
|
struct work_struct recalc_smps;
|
|
|
|
/* aggregated multicast list */
|
|
struct netdev_hw_addr_list mc_list;
|
|
|
|
bool tim_in_locked_section; /* see ieee80211_beacon_get() */
|
|
|
|
/*
|
|
* suspended is true if we finished all the suspend _and_ we have
|
|
* not yet come up from resume. This is to be used by mac80211
|
|
* to ensure driver sanity during suspend and mac80211's own
|
|
* sanity. It can eventually be used for WoW as well.
|
|
*/
|
|
bool suspended;
|
|
|
|
/*
|
|
* Resuming is true while suspended, but when we're reprogramming the
|
|
* hardware -- at that time it's allowed to use ieee80211_queue_work()
|
|
* again even though some other parts of the stack are still suspended
|
|
* and we still drop received frames to avoid waking the stack.
|
|
*/
|
|
bool resuming;
|
|
|
|
/*
|
|
* quiescing is true during the suspend process _only_ to
|
|
* ease timer cancelling etc.
|
|
*/
|
|
bool quiescing;
|
|
|
|
/* device is started */
|
|
bool started;
|
|
|
|
/* wowlan is enabled -- don't reconfig on resume */
|
|
bool wowlan;
|
|
|
|
int tx_headroom; /* required headroom for hardware/radiotap */
|
|
|
|
/* 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;
|
|
|
|
/*
|
|
* Internal FIFO queue which is shared between multiple rx path
|
|
* stages. Its main task is to provide a serialization mechanism,
|
|
* so all rx handlers can enjoy having exclusive access to their
|
|
* private data structures.
|
|
*/
|
|
struct sk_buff_head rx_skb_queue;
|
|
bool running_rx_handler; /* protected by rx_skb_queue.lock */
|
|
|
|
/* Station data */
|
|
/*
|
|
* The mutex only protects the list, hash table and
|
|
* counter, reads are done with RCU.
|
|
*/
|
|
struct mutex sta_mtx;
|
|
spinlock_t tim_lock;
|
|
unsigned long num_sta;
|
|
struct list_head sta_list;
|
|
struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
|
|
struct timer_list sta_cleanup;
|
|
int sta_generation;
|
|
|
|
struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
|
|
struct tasklet_struct tx_pending_tasklet;
|
|
|
|
atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
|
|
|
|
/* number of interfaces with corresponding IFF_ flags */
|
|
atomic_t iff_allmultis, iff_promiscs;
|
|
|
|
struct rate_control_ref *rate_ctrl;
|
|
|
|
struct crypto_cipher *wep_tx_tfm;
|
|
struct crypto_cipher *wep_rx_tfm;
|
|
u32 wep_iv;
|
|
|
|
/* see iface.c */
|
|
struct list_head interfaces;
|
|
struct mutex iflist_mtx;
|
|
|
|
/*
|
|
* Key mutex, protects sdata's key_list and sta_info's
|
|
* key pointers (write access, they're RCU.)
|
|
*/
|
|
struct mutex key_mtx;
|
|
|
|
/* mutex for scan and work locking */
|
|
struct mutex mtx;
|
|
|
|
/* Scanning and BSS list */
|
|
unsigned long scanning;
|
|
struct cfg80211_ssid scan_ssid;
|
|
struct cfg80211_scan_request *int_scan_req;
|
|
struct cfg80211_scan_request *scan_req, *hw_scan_req;
|
|
struct ieee80211_channel *scan_channel;
|
|
enum ieee80211_band hw_scan_band;
|
|
int scan_channel_idx;
|
|
int scan_ies_len;
|
|
|
|
bool sched_scanning;
|
|
struct ieee80211_sched_scan_ies sched_scan_ies;
|
|
struct work_struct sched_scan_stopped_work;
|
|
|
|
unsigned long leave_oper_channel_time;
|
|
enum mac80211_scan_state next_scan_state;
|
|
struct delayed_work scan_work;
|
|
struct ieee80211_sub_if_data *scan_sdata;
|
|
enum nl80211_channel_type _oper_channel_type;
|
|
struct ieee80211_channel *oper_channel, *csa_channel;
|
|
|
|
/* Temporary remain-on-channel for off-channel operations */
|
|
struct ieee80211_channel *tmp_channel;
|
|
enum nl80211_channel_type tmp_channel_type;
|
|
|
|
/* SNMP counters */
|
|
/* dot11CountersTable */
|
|
u32 dot11TransmittedFragmentCount;
|
|
u32 dot11MulticastTransmittedFrameCount;
|
|
u32 dot11FailedCount;
|
|
u32 dot11RetryCount;
|
|
u32 dot11MultipleRetryCount;
|
|
u32 dot11FrameDuplicateCount;
|
|
u32 dot11ReceivedFragmentCount;
|
|
u32 dot11MulticastReceivedFrameCount;
|
|
u32 dot11TransmittedFrameCount;
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
int tx_led_counter, rx_led_counter;
|
|
struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
|
|
struct tpt_led_trigger *tpt_led_trigger;
|
|
char tx_led_name[32], rx_led_name[32],
|
|
assoc_led_name[32], radio_led_name[32];
|
|
#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;
|
|
#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
|
|
*/
|
|
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
|
|
|
|
/*
|
|
* Bitmask of enabled u-apsd queues,
|
|
* IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
|
|
* to take effect.
|
|
*/
|
|
unsigned int uapsd_queues;
|
|
|
|
/*
|
|
* Maximum number of buffered frames AP can deliver during a
|
|
* service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
|
|
* Needs a new association to take effect.
|
|
*/
|
|
unsigned int uapsd_max_sp_len;
|
|
|
|
bool pspolling;
|
|
bool offchannel_ps_enabled;
|
|
/*
|
|
* PS can only be enabled when we have exactly one managed
|
|
* interface (and monitors) in PS, this then points there.
|
|
*/
|
|
struct ieee80211_sub_if_data *ps_sdata;
|
|
struct work_struct dynamic_ps_enable_work;
|
|
struct work_struct dynamic_ps_disable_work;
|
|
struct timer_list dynamic_ps_timer;
|
|
struct notifier_block network_latency_notifier;
|
|
struct notifier_block ifa_notifier;
|
|
|
|
/*
|
|
* The dynamic ps timeout configured from user space via WEXT -
|
|
* this will override whatever chosen by mac80211 internally.
|
|
*/
|
|
int dynamic_ps_forced_timeout;
|
|
int dynamic_ps_user_timeout;
|
|
bool disable_dynamic_ps;
|
|
|
|
int user_power_level; /* in dBm */
|
|
int power_constr_level; /* in dBm */
|
|
|
|
enum ieee80211_smps_mode smps_mode;
|
|
|
|
struct work_struct restart_work;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct local_debugfsdentries {
|
|
struct dentry *rcdir;
|
|
struct dentry *keys;
|
|
} debugfs;
|
|
#endif
|
|
|
|
struct ieee80211_channel *hw_roc_channel;
|
|
struct net_device *hw_roc_dev;
|
|
struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
|
|
struct work_struct hw_roc_start, hw_roc_done;
|
|
enum nl80211_channel_type hw_roc_channel_type;
|
|
unsigned int hw_roc_duration;
|
|
u32 hw_roc_cookie;
|
|
bool hw_roc_for_tx;
|
|
|
|
struct idr ack_status_frames;
|
|
spinlock_t ack_status_lock;
|
|
|
|
/* dummy netdev for use w/ NAPI */
|
|
struct net_device napi_dev;
|
|
|
|
struct napi_struct napi;
|
|
};
|
|
|
|
static inline struct ieee80211_sub_if_data *
|
|
IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
|
|
{
|
|
return netdev_priv(dev);
|
|
}
|
|
|
|
/* 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 {
|
|
u8 *ie_start;
|
|
size_t total_len;
|
|
|
|
/* pointers to IEs */
|
|
u8 *ssid;
|
|
u8 *supp_rates;
|
|
u8 *fh_params;
|
|
u8 *ds_params;
|
|
u8 *cf_params;
|
|
struct ieee80211_tim_ie *tim;
|
|
u8 *ibss_params;
|
|
u8 *challenge;
|
|
u8 *wpa;
|
|
u8 *rsn;
|
|
u8 *erp_info;
|
|
u8 *ext_supp_rates;
|
|
u8 *wmm_info;
|
|
u8 *wmm_param;
|
|
struct ieee80211_ht_cap *ht_cap_elem;
|
|
struct ieee80211_ht_info *ht_info_elem;
|
|
struct ieee80211_meshconf_ie *mesh_config;
|
|
u8 *mesh_id;
|
|
u8 *peering;
|
|
u8 *preq;
|
|
u8 *prep;
|
|
u8 *perr;
|
|
struct ieee80211_rann_ie *rann;
|
|
u8 *ch_switch_elem;
|
|
u8 *country_elem;
|
|
u8 *pwr_constr_elem;
|
|
u8 *quiet_elem; /* first quite element */
|
|
u8 *timeout_int;
|
|
|
|
/* 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 mesh_id_len;
|
|
u8 peering_len;
|
|
u8 preq_len;
|
|
u8 prep_len;
|
|
u8 perr_len;
|
|
u8 ch_switch_elem_len;
|
|
u8 country_elem_len;
|
|
u8 pwr_constr_elem_len;
|
|
u8 quiet_elem_len;
|
|
u8 num_of_quiet_elem; /* can be more the one */
|
|
u8 timeout_int_len;
|
|
|
|
/* whether a parse error occurred while retrieving these elements */
|
|
bool parse_error;
|
|
};
|
|
|
|
static inline struct ieee80211_local *hw_to_local(
|
|
struct ieee80211_hw *hw)
|
|
{
|
|
return container_of(hw, struct ieee80211_local, hw);
|
|
}
|
|
|
|
|
|
static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
|
|
{
|
|
return compare_ether_addr(raddr, addr) == 0 ||
|
|
is_broadcast_ether_addr(raddr);
|
|
}
|
|
|
|
|
|
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
|
|
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
|
|
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
|
|
u32 changed);
|
|
void ieee80211_configure_filter(struct ieee80211_local *local);
|
|
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* STA code */
|
|
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_auth_request *req);
|
|
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_assoc_request *req);
|
|
int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_deauth_request *req);
|
|
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_disassoc_request *req);
|
|
void ieee80211_send_pspoll(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
|
|
int ieee80211_max_network_latency(struct notifier_block *nb,
|
|
unsigned long data, void *dummy);
|
|
int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_channel_sw_ie *sw_elem,
|
|
struct ieee80211_bss *bss,
|
|
u64 timestamp);
|
|
void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb);
|
|
void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_mgd_teardown(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* IBSS code */
|
|
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
|
|
void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *bssid, const u8 *addr, u32 supp_rates);
|
|
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_ibss_params *params);
|
|
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb);
|
|
|
|
/* mesh code */
|
|
void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb);
|
|
|
|
/* scan/BSS handling */
|
|
void ieee80211_scan_work(struct work_struct *work);
|
|
int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *ssid, u8 ssid_len,
|
|
struct ieee80211_channel *chan);
|
|
int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_scan_request *req);
|
|
void ieee80211_scan_cancel(struct ieee80211_local *local);
|
|
ieee80211_rx_result
|
|
ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
|
|
|
|
void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
|
|
struct ieee80211_bss *
|
|
ieee80211_bss_info_update(struct ieee80211_local *local,
|
|
struct ieee80211_rx_status *rx_status,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len,
|
|
struct ieee802_11_elems *elems,
|
|
struct ieee80211_channel *channel,
|
|
bool beacon);
|
|
struct ieee80211_bss *
|
|
ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
|
|
u8 *ssid, u8 ssid_len);
|
|
void ieee80211_rx_bss_put(struct ieee80211_local *local,
|
|
struct ieee80211_bss *bss);
|
|
|
|
/* scheduled scan handling */
|
|
int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_sched_scan_request *req);
|
|
int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sched_scan_stopped_work(struct work_struct *work);
|
|
|
|
/* off-channel helpers */
|
|
void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
|
|
bool offchannel_ps_enable);
|
|
void ieee80211_offchannel_return(struct ieee80211_local *local,
|
|
bool offchannel_ps_disable);
|
|
void ieee80211_hw_roc_setup(struct ieee80211_local *local);
|
|
|
|
/* interface handling */
|
|
int ieee80211_iface_init(void);
|
|
void ieee80211_iface_exit(void);
|
|
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
|
|
struct net_device **new_dev, enum nl80211_iftype type,
|
|
struct vif_params *params);
|
|
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
|
|
enum nl80211_iftype type);
|
|
void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_remove_interfaces(struct ieee80211_local *local);
|
|
u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
|
|
void ieee80211_recalc_idle(struct ieee80211_local *local);
|
|
void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
|
|
const int offset);
|
|
|
|
static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
return test_bit(SDATA_STATE_RUNNING, &sdata->state);
|
|
}
|
|
|
|
/* tx handling */
|
|
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
|
|
void ieee80211_tx_pending(unsigned long data);
|
|
netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
|
|
struct net_device *dev);
|
|
netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
|
|
struct net_device *dev);
|
|
|
|
/* HT */
|
|
bool ieee80111_cfg_override_disables_ht40(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_sta_ht_cap *ht_cap);
|
|
void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_supported_band *sband,
|
|
struct ieee80211_ht_cap *ht_cap_ie,
|
|
struct ieee80211_sta_ht_cap *ht_cap);
|
|
void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *da, u16 tid,
|
|
u16 initiator, u16 reason_code);
|
|
int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
|
|
enum ieee80211_smps_mode smps, const u8 *da,
|
|
const u8 *bssid);
|
|
void ieee80211_request_smps_work(struct work_struct *work);
|
|
|
|
void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
|
|
u16 initiator, u16 reason, bool stop);
|
|
void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
|
|
u16 initiator, u16 reason, bool stop);
|
|
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
|
|
void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt, size_t len);
|
|
void ieee80211_process_addba_resp(struct ieee80211_local *local,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
void ieee80211_process_addba_request(struct ieee80211_local *local,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
|
|
int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
|
|
enum ieee80211_back_parties initiator,
|
|
bool tx);
|
|
int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
|
|
enum ieee80211_back_parties initiator,
|
|
bool tx);
|
|
void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
|
|
void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
|
|
void ieee80211_ba_session_work(struct work_struct *work);
|
|
void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
|
|
void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
|
|
|
|
/* Spectrum management */
|
|
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
|
|
/* Suspend/resume and hw reconfiguration */
|
|
int ieee80211_reconfig(struct ieee80211_local *local);
|
|
void ieee80211_stop_device(struct ieee80211_local *local);
|
|
|
|
#ifdef CONFIG_PM
|
|
int __ieee80211_suspend(struct ieee80211_hw *hw,
|
|
struct cfg80211_wowlan *wowlan);
|
|
|
|
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
|
|
{
|
|
struct ieee80211_local *local = hw_to_local(hw);
|
|
|
|
WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
|
|
"%s: resume with hardware scan still in progress\n",
|
|
wiphy_name(hw->wiphy));
|
|
|
|
return ieee80211_reconfig(hw_to_local(hw));
|
|
}
|
|
#else
|
|
static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
|
|
struct cfg80211_wowlan *wowlan)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* utility functions/constants */
|
|
extern void *mac80211_wiphy_privid; /* for wiphy privid */
|
|
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
|
|
enum nl80211_iftype type);
|
|
int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
|
|
int rate, int erp, int short_preamble);
|
|
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
|
|
struct ieee80211_hdr *hdr, const u8 *tsc,
|
|
gfp_t gfp);
|
|
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
|
|
bool bss_notify);
|
|
void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
|
|
|
|
void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, int tid);
|
|
static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb)
|
|
{
|
|
/* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
|
|
ieee80211_tx_skb_tid(sdata, skb, 7);
|
|
}
|
|
|
|
void ieee802_11_parse_elems(u8 *start, size_t len,
|
|
struct ieee802_11_elems *elems);
|
|
u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
|
|
struct ieee802_11_elems *elems,
|
|
u64 filter, u32 crc);
|
|
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
|
|
enum ieee80211_band band);
|
|
|
|
void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
|
|
void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
|
|
void ieee80211_dynamic_ps_timer(unsigned long data);
|
|
void ieee80211_send_nullfunc(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
int powersave);
|
|
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_hdr *hdr);
|
|
void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_hdr *hdr, bool ack);
|
|
void ieee80211_beacon_connection_loss_work(struct work_struct *work);
|
|
|
|
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_add_pending_skb(struct ieee80211_local *local,
|
|
struct sk_buff *skb);
|
|
void ieee80211_add_pending_skbs(struct ieee80211_local *local,
|
|
struct sk_buff_head *skbs);
|
|
void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
|
|
struct sk_buff_head *skbs,
|
|
void (*fn)(void *data), void *data);
|
|
|
|
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
|
|
u16 transaction, u16 auth_alg,
|
|
u8 *extra, size_t extra_len, const u8 *bssid,
|
|
const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
|
|
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
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const u8 *ie, size_t ie_len,
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enum ieee80211_band band, u32 rate_mask,
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u8 channel);
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struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
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u8 *dst, u32 ratemask,
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const u8 *ssid, size_t ssid_len,
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const u8 *ie, size_t ie_len,
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bool directed);
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void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
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const u8 *ssid, size_t ssid_len,
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const u8 *ie, size_t ie_len,
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u32 ratemask, bool directed, bool no_cck);
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|
|
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void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
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const size_t supp_rates_len,
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const u8 *supp_rates);
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u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
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struct ieee802_11_elems *elems,
|
|
enum ieee80211_band band);
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int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
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enum ieee80211_smps_mode smps_mode);
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void ieee80211_recalc_smps(struct ieee80211_local *local);
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|
|
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size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
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|
const u8 *ids, int n_ids, size_t offset);
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|
size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
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u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
|
|
u16 cap);
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|
u8 *ieee80211_ie_build_ht_info(u8 *pos,
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struct ieee80211_sta_ht_cap *ht_cap,
|
|
struct ieee80211_channel *channel,
|
|
enum nl80211_channel_type channel_type);
|
|
|
|
/* internal work items */
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void ieee80211_work_init(struct ieee80211_local *local);
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void ieee80211_add_work(struct ieee80211_work *wk);
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|
void free_work(struct ieee80211_work *wk);
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|
void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_channel *chan,
|
|
enum nl80211_channel_type channel_type,
|
|
unsigned int duration, u64 *cookie);
|
|
int ieee80211_wk_cancel_remain_on_channel(
|
|
struct ieee80211_sub_if_data *sdata, u64 cookie);
|
|
|
|
/* channel management */
|
|
enum ieee80211_chan_mode {
|
|
CHAN_MODE_UNDEFINED,
|
|
CHAN_MODE_HOPPING,
|
|
CHAN_MODE_FIXED,
|
|
};
|
|
|
|
enum ieee80211_chan_mode
|
|
ieee80211_get_channel_mode(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *ignore);
|
|
bool ieee80211_set_channel_type(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
enum nl80211_channel_type chantype);
|
|
enum nl80211_channel_type
|
|
ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
|
|
|
|
#ifdef CONFIG_MAC80211_NOINLINE
|
|
#define debug_noinline noinline
|
|
#else
|
|
#define debug_noinline
|
|
#endif
|
|
|
|
#endif /* IEEE80211_I_H */
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