2161 lines
68 KiB
C
2161 lines
68 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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* Copyright 2013-2015 Intel Mobile Communications GmbH
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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 <linux/rhashtable.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 <net/fq.h>
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#include "key.h"
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#include "sta_info.h"
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#include "debug.h"
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extern const struct cfg80211_ops mac80211_config_ops;
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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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/* power level hasn't been configured (or set to automatic) */
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#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
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/*
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* Some APs experience problems when working with U-APSD. Decreasing the
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* probability of that happening by using legacy mode for all ACs but VO isn't
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* enough.
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*
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* Cisco 4410N originally forced us to enable VO by default only because it
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* treated non-VO ACs as legacy.
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*
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* However some APs (notably Netgear R7000) silently reclassify packets to
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* different ACs. Since u-APSD ACs require trigger frames for frame retrieval
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* clients would never see some frames (e.g. ARP responses) or would fetch them
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* accidentally after a long time.
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*
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* It makes little sense to enable u-APSD queues by default because it needs
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* userspace applications to be aware of it to actually take advantage of the
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* possible additional powersavings. Implicitly depending on driver autotrigger
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* frame support doesn't make much sense.
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*/
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#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
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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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extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
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#define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
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#define IEEE80211_MAX_NAN_INSTANCE_ID 255
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struct ieee80211_fragment_entry {
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struct sk_buff_head skb_list;
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unsigned long first_frag_time;
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u16 seq;
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u16 extra_len;
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u16 last_frag;
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u8 rx_queue;
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bool check_sequential_pn; /* needed for CCMP/GCMP */
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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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u32 device_ts_beacon, device_ts_presp;
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bool wmm_used;
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bool uapsd_supported;
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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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struct ieee80211_rate *beacon_rate;
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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_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 received 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_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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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_tx_rate rate;
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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_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_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 napi_struct *napi;
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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 ieee80211_csa_settings {
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const u16 *counter_offsets_beacon;
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const u16 *counter_offsets_presp;
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int n_counter_offsets_beacon;
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int n_counter_offsets_presp;
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u8 count;
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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 ieee80211_meshconf_ie *meshconf;
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u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
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u8 csa_current_counter;
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struct rcu_head rcu_head;
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};
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struct probe_resp {
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struct rcu_head rcu_head;
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int len;
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u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
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u8 data[0];
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};
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struct ps_data {
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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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__aligned(__alignof__(unsigned long));
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struct sk_buff_head 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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bool dtim_bc_mc;
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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 probe_resp __rcu *probe_resp;
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/* to be used after channel switch. */
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struct cfg80211_beacon_data *next_beacon;
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struct list_head vlans; /* write-protected with RTNL and local->mtx */
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struct ps_data ps;
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atomic_t num_mcast_sta; /* number of stations receiving multicast */
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enum ieee80211_smps_mode req_smps, /* requested smps mode */
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driver_smps_mode; /* smps mode request */
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struct work_struct request_smps_work;
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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; /* write-protected with RTNL and local->mtx */
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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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atomic_t num_mcast_sta; /* number of stations receiving multicast */
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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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};
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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 ieee80211_roc_work {
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struct list_head list;
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struct ieee80211_sub_if_data *sdata;
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struct ieee80211_channel *chan;
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bool started, abort, hw_begun, notified;
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bool on_channel;
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unsigned long start_time;
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u32 duration, req_duration;
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struct sk_buff *frame;
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u64 cookie, mgmt_tx_cookie;
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enum ieee80211_roc_type type;
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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_CONNECTION_POLL = BIT(1),
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IEEE80211_STA_CONTROL_PORT = BIT(2),
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IEEE80211_STA_DISABLE_HT = BIT(4),
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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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IEEE80211_STA_DISABLE_40MHZ = BIT(10),
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IEEE80211_STA_DISABLE_VHT = BIT(11),
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IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
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IEEE80211_STA_DISABLE_160MHZ = BIT(13),
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IEEE80211_STA_DISABLE_WMM = BIT(14),
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IEEE80211_STA_ENABLE_RRM = BIT(15),
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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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bool timeout_started;
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u16 sae_trans, sae_status;
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size_t data_len;
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u8 data[];
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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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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 need_beacon;
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bool synced;
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bool timeout_started;
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u8 ap_ht_param;
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struct ieee80211_vht_cap ap_vht_cap;
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u8 fils_nonces[2 * FILS_NONCE_LEN];
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u8 fils_kek[FILS_MAX_KEK_LEN];
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size_t fils_kek_len;
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size_t ie_len;
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u8 ie[];
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};
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struct ieee80211_sta_tx_tspec {
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/* timestamp of the first packet in the time slice */
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unsigned long time_slice_start;
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u32 admitted_time; /* in usecs, unlike over the air */
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u8 tsid;
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s8 up; /* signed to be able to invalidate with -1 during teardown */
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/* consumed TX time in microseconds in the time slice */
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u32 consumed_tx_time;
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enum {
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TX_TSPEC_ACTION_NONE = 0,
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TX_TSPEC_ACTION_DOWNGRADE,
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TX_TSPEC_ACTION_STOP_DOWNGRADE,
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} action;
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bool downgraded;
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};
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DECLARE_EWMA(beacon_signal, 16, 4)
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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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struct work_struct csa_connection_drop_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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bool connection_loss;
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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] __aligned(2);
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u16 aid;
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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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bool have_beacon;
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u8 dtim_period;
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enum ieee80211_smps_mode req_smps, /* requested smps mode */
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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 csa_waiting_bcn;
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bool csa_ignored_same_chan;
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bool beacon_crc_valid;
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u32 beacon_crc;
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bool status_acked;
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bool status_received;
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__le16 status_fc;
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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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/*
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* Bitmask of enabled u-apsd queues,
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* IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
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* to take effect.
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*/
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unsigned int uapsd_queues;
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/*
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* Maximum number of buffered frames AP can deliver during a
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* service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
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* Needs a new association to take effect.
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*/
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unsigned int uapsd_max_sp_len;
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int wmm_last_param_set;
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u8 use_4addr;
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s16 p2p_noa_index;
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struct ewma_beacon_signal ave_beacon_signal;
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|
/*
|
|
* Number of Beacon frames used in ave_beacon_signal. This can be used
|
|
* to avoid generating less reliable cqm events that would be based
|
|
* only on couple of received frames.
|
|
*/
|
|
unsigned int count_beacon_signal;
|
|
|
|
/* Number of times beacon loss was invoked. */
|
|
unsigned int beacon_loss_count;
|
|
|
|
/*
|
|
* Last Beacon frame signal strength average (ave_beacon_signal / 16)
|
|
* that triggered a cqm event. 0 indicates that no event has been
|
|
* generated for the current association.
|
|
*/
|
|
int last_cqm_event_signal;
|
|
|
|
/*
|
|
* State variables for keeping track of RSSI of the AP currently
|
|
* connected to and informing driver when RSSI has gone
|
|
* below/above a certain threshold.
|
|
*/
|
|
int rssi_min_thold, rssi_max_thold;
|
|
int last_ave_beacon_signal;
|
|
|
|
struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
|
|
struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
|
|
struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
|
|
struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
|
|
|
|
/* TDLS support */
|
|
u8 tdls_peer[ETH_ALEN] __aligned(2);
|
|
struct delayed_work tdls_peer_del_work;
|
|
struct sk_buff *orig_teardown_skb; /* The original teardown skb */
|
|
struct sk_buff *teardown_skb; /* A copy to send through the AP */
|
|
spinlock_t teardown_lock; /* To lock changing teardown_skb */
|
|
bool tdls_chan_switch_prohibited;
|
|
bool tdls_wider_bw_prohibited;
|
|
|
|
/* WMM-AC TSPEC support */
|
|
struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
|
|
/* Use a separate work struct so that we can do something here
|
|
* while the sdata->work is flushing the queues, for example.
|
|
* otherwise, in scenarios where we hardly get any traffic out
|
|
* on the BE queue, but there's a lot of VO traffic, we might
|
|
* get stuck in a downgraded situation and flush takes forever.
|
|
*/
|
|
struct delayed_work tx_tspec_wk;
|
|
};
|
|
|
|
struct ieee80211_if_ibss {
|
|
struct timer_list timer;
|
|
struct work_struct csa_connection_drop_work;
|
|
|
|
unsigned long last_scan_completed;
|
|
|
|
u32 basic_rates;
|
|
|
|
bool fixed_bssid;
|
|
bool fixed_channel;
|
|
bool privacy;
|
|
|
|
bool control_port;
|
|
bool userspace_handles_dfs;
|
|
|
|
u8 bssid[ETH_ALEN] __aligned(2);
|
|
u8 ssid[IEEE80211_MAX_SSID_LEN];
|
|
u8 ssid_len, ie_len;
|
|
u8 *ie;
|
|
struct cfg80211_chan_def chandef;
|
|
|
|
unsigned long ibss_join_req;
|
|
/* probe response/beacon for IBSS */
|
|
struct beacon_data __rcu *presp;
|
|
|
|
struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
|
|
struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
|
|
|
|
spinlock_t incomplete_lock;
|
|
struct list_head incomplete_stations;
|
|
|
|
enum {
|
|
IEEE80211_IBSS_MLME_SEARCH,
|
|
IEEE80211_IBSS_MLME_JOINED,
|
|
} state;
|
|
};
|
|
|
|
/**
|
|
* struct ieee80211_if_ocb - OCB mode state
|
|
*
|
|
* @housekeeping_timer: timer for periodic invocation of a housekeeping task
|
|
* @wrkq_flags: OCB deferred task action
|
|
* @incomplete_lock: delayed STA insertion lock
|
|
* @incomplete_stations: list of STAs waiting for delayed insertion
|
|
* @joined: indication if the interface is connected to an OCB network
|
|
*/
|
|
struct ieee80211_if_ocb {
|
|
struct timer_list housekeeping_timer;
|
|
unsigned long wrkq_flags;
|
|
|
|
spinlock_t incomplete_lock;
|
|
struct list_head incomplete_stations;
|
|
|
|
bool joined;
|
|
};
|
|
|
|
/**
|
|
* struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
|
|
*
|
|
* these declarations define the interface, which enables
|
|
* vendor-specific mesh synchronization
|
|
*
|
|
*/
|
|
struct ieee802_11_elems;
|
|
struct ieee80211_mesh_sync_ops {
|
|
void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
|
|
u16 stype,
|
|
struct ieee80211_mgmt *mgmt,
|
|
struct ieee802_11_elems *elems,
|
|
struct ieee80211_rx_status *rx_status);
|
|
|
|
/* should be called with beacon_data under RCU read lock */
|
|
void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
|
|
struct beacon_data *beacon);
|
|
/* add other framework functions here */
|
|
};
|
|
|
|
struct mesh_csa_settings {
|
|
struct rcu_head rcu_head;
|
|
struct cfg80211_csa_settings settings;
|
|
};
|
|
|
|
struct ieee80211_if_mesh {
|
|
struct timer_list housekeeping_timer;
|
|
struct timer_list mesh_path_timer;
|
|
struct timer_list mesh_path_root_timer;
|
|
|
|
unsigned long wrkq_flags;
|
|
unsigned long mbss_changed;
|
|
|
|
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;
|
|
atomic_t estab_plinks;
|
|
u32 mesh_seqnum;
|
|
bool accepting_plinks;
|
|
int num_gates;
|
|
struct beacon_data __rcu *beacon;
|
|
const u8 *ie;
|
|
u8 ie_len;
|
|
enum {
|
|
IEEE80211_MESH_SEC_NONE = 0x0,
|
|
IEEE80211_MESH_SEC_AUTHED = 0x1,
|
|
IEEE80211_MESH_SEC_SECURED = 0x2,
|
|
} security;
|
|
bool user_mpm;
|
|
/* Extensible Synchronization Framework */
|
|
const struct ieee80211_mesh_sync_ops *sync_ops;
|
|
s64 sync_offset_clockdrift_max;
|
|
spinlock_t sync_offset_lock;
|
|
bool adjusting_tbtt;
|
|
/* mesh power save */
|
|
enum nl80211_mesh_power_mode nonpeer_pm;
|
|
int ps_peers_light_sleep;
|
|
int ps_peers_deep_sleep;
|
|
struct ps_data ps;
|
|
/* Channel Switching Support */
|
|
struct mesh_csa_settings __rcu *csa;
|
|
enum {
|
|
IEEE80211_MESH_CSA_ROLE_NONE,
|
|
IEEE80211_MESH_CSA_ROLE_INIT,
|
|
IEEE80211_MESH_CSA_ROLE_REPEATER,
|
|
} csa_role;
|
|
u8 chsw_ttl;
|
|
u16 pre_value;
|
|
|
|
/* offset from skb->data while building IE */
|
|
int meshconf_offset;
|
|
|
|
struct mesh_table *mesh_paths;
|
|
struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
|
|
int mesh_paths_generation;
|
|
int mpp_paths_generation;
|
|
};
|
|
|
|
#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_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_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
|
|
* @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
|
|
* to offchannel, reset when offchannel returns
|
|
*/
|
|
enum ieee80211_sdata_state_bits {
|
|
SDATA_STATE_RUNNING,
|
|
SDATA_STATE_OFFCHANNEL,
|
|
SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
|
|
};
|
|
|
|
/**
|
|
* enum ieee80211_chanctx_mode - channel context configuration mode
|
|
*
|
|
* @IEEE80211_CHANCTX_SHARED: channel context may be used by
|
|
* multiple interfaces
|
|
* @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
|
|
* only by a single interface. This can be used for example for
|
|
* non-fixed channel IBSS.
|
|
*/
|
|
enum ieee80211_chanctx_mode {
|
|
IEEE80211_CHANCTX_SHARED,
|
|
IEEE80211_CHANCTX_EXCLUSIVE
|
|
};
|
|
|
|
/**
|
|
* enum ieee80211_chanctx_replace_state - channel context replacement state
|
|
*
|
|
* This is used for channel context in-place reservations that require channel
|
|
* context switch/swap.
|
|
*
|
|
* @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
|
|
* @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
|
|
* by a (not yet registered) channel context pointed by %replace_ctx.
|
|
* @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
|
|
* replaces an existing channel context pointed to by %replace_ctx.
|
|
*/
|
|
enum ieee80211_chanctx_replace_state {
|
|
IEEE80211_CHANCTX_REPLACE_NONE,
|
|
IEEE80211_CHANCTX_WILL_BE_REPLACED,
|
|
IEEE80211_CHANCTX_REPLACES_OTHER,
|
|
};
|
|
|
|
struct ieee80211_chanctx {
|
|
struct list_head list;
|
|
struct rcu_head rcu_head;
|
|
|
|
struct list_head assigned_vifs;
|
|
struct list_head reserved_vifs;
|
|
|
|
enum ieee80211_chanctx_replace_state replace_state;
|
|
struct ieee80211_chanctx *replace_ctx;
|
|
|
|
enum ieee80211_chanctx_mode mode;
|
|
bool driver_present;
|
|
|
|
struct ieee80211_chanctx_conf conf;
|
|
};
|
|
|
|
struct mac80211_qos_map {
|
|
struct cfg80211_qos_map qos_map;
|
|
struct rcu_head rcu_head;
|
|
};
|
|
|
|
enum txq_info_flags {
|
|
IEEE80211_TXQ_STOP,
|
|
IEEE80211_TXQ_AMPDU,
|
|
IEEE80211_TXQ_NO_AMSDU,
|
|
};
|
|
|
|
/**
|
|
* struct txq_info - per tid queue
|
|
*
|
|
* @tin: contains packets split into multiple flows
|
|
* @def_flow: used as a fallback flow when a packet destined to @tin hashes to
|
|
* a fq_flow which is already owned by a different tin
|
|
* @def_cvars: codel vars for @def_flow
|
|
* @frags: used to keep fragments created after dequeue
|
|
*/
|
|
struct txq_info {
|
|
struct fq_tin tin;
|
|
struct fq_flow def_flow;
|
|
struct codel_vars def_cvars;
|
|
struct codel_stats cstats;
|
|
struct sk_buff_head frags;
|
|
unsigned long flags;
|
|
|
|
/* keep last! */
|
|
struct ieee80211_txq txq;
|
|
};
|
|
|
|
struct ieee80211_if_mntr {
|
|
u32 flags;
|
|
u8 mu_follow_addr[ETH_ALEN] __aligned(2);
|
|
};
|
|
|
|
/**
|
|
* struct ieee80211_if_nan - NAN state
|
|
*
|
|
* @conf: current NAN configuration
|
|
* @func_ids: a bitmap of available instance_id's
|
|
*/
|
|
struct ieee80211_if_nan {
|
|
struct cfg80211_nan_conf conf;
|
|
|
|
/* protects function_inst_ids */
|
|
spinlock_t func_lock;
|
|
struct idr function_inst_ids;
|
|
};
|
|
|
|
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;
|
|
int crypto_tx_tailroom_pending_dec;
|
|
struct delayed_work dec_tailroom_needed_wk;
|
|
|
|
struct net_device *dev;
|
|
struct ieee80211_local *local;
|
|
|
|
unsigned int flags;
|
|
|
|
unsigned long state;
|
|
|
|
char name[IFNAMSIZ];
|
|
|
|
/* 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;
|
|
|
|
/* bit field of ACM bits (BIT(802.1D tag)) */
|
|
u8 wmm_acm;
|
|
|
|
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;
|
|
int encrypt_headroom;
|
|
|
|
atomic_t num_tx_queued;
|
|
struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
|
|
struct mac80211_qos_map __rcu *qos_map;
|
|
|
|
struct work_struct csa_finalize_work;
|
|
bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
|
|
struct cfg80211_chan_def csa_chandef;
|
|
|
|
struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
|
|
struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
|
|
|
|
/* context reservation -- protected with chanctx_mtx */
|
|
struct ieee80211_chanctx *reserved_chanctx;
|
|
struct cfg80211_chan_def reserved_chandef;
|
|
bool reserved_radar_required;
|
|
bool reserved_ready;
|
|
|
|
/* used to reconfigure hardware SM PS */
|
|
struct work_struct recalc_smps;
|
|
|
|
struct work_struct work;
|
|
struct sk_buff_head skb_queue;
|
|
|
|
u8 needed_rx_chains;
|
|
enum ieee80211_smps_mode smps_mode;
|
|
|
|
int user_power_level; /* in dBm */
|
|
int ap_power_level; /* in dBm */
|
|
|
|
bool radar_required;
|
|
struct delayed_work dfs_cac_timer_work;
|
|
|
|
/*
|
|
* 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[NUM_NL80211_BANDS];
|
|
|
|
bool rc_has_mcs_mask[NUM_NL80211_BANDS];
|
|
u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
|
|
|
|
bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
|
|
u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
|
|
|
|
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;
|
|
struct ieee80211_if_ocb ocb;
|
|
struct ieee80211_if_mntr mntr;
|
|
struct ieee80211_if_nan nan;
|
|
} u;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct {
|
|
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);
|
|
}
|
|
|
|
static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
|
|
__acquires(&sdata->wdev.mtx)
|
|
{
|
|
mutex_lock(&sdata->wdev.mtx);
|
|
__acquire(&sdata->wdev.mtx);
|
|
}
|
|
|
|
static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
|
|
__releases(&sdata->wdev.mtx)
|
|
{
|
|
mutex_unlock(&sdata->wdev.mtx);
|
|
__release(&sdata->wdev.mtx);
|
|
}
|
|
|
|
#define sdata_dereference(p, sdata) \
|
|
rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
|
|
|
|
static inline void
|
|
sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
lockdep_assert_held(&sdata->wdev.mtx);
|
|
}
|
|
|
|
static inline enum nl80211_band
|
|
ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
enum nl80211_band band = NL80211_BAND_2GHZ;
|
|
struct ieee80211_chanctx_conf *chanctx_conf;
|
|
|
|
rcu_read_lock();
|
|
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
|
|
if (!WARN_ON(!chanctx_conf))
|
|
band = chanctx_conf->def.chan->band;
|
|
rcu_read_unlock();
|
|
|
|
return band;
|
|
}
|
|
|
|
static inline int
|
|
ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
|
|
{
|
|
switch (chandef->width) {
|
|
case NL80211_CHAN_WIDTH_5:
|
|
return 2;
|
|
case NL80211_CHAN_WIDTH_10:
|
|
return 1;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static inline int
|
|
ieee80211_vif_get_shift(struct ieee80211_vif *vif)
|
|
{
|
|
struct ieee80211_chanctx_conf *chanctx_conf;
|
|
int shift = 0;
|
|
|
|
rcu_read_lock();
|
|
chanctx_conf = rcu_dereference(vif->chanctx_conf);
|
|
if (chanctx_conf)
|
|
shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
|
|
rcu_read_unlock();
|
|
|
|
return shift;
|
|
}
|
|
|
|
struct ieee80211_rx_agg {
|
|
u8 addr[ETH_ALEN];
|
|
u16 tid;
|
|
};
|
|
|
|
enum sdata_queue_type {
|
|
IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
|
|
IEEE80211_SDATA_QUEUE_AGG_START = 1,
|
|
IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
|
|
IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
|
|
IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
|
|
};
|
|
|
|
enum {
|
|
IEEE80211_RX_MSG = 1,
|
|
IEEE80211_TX_STATUS_MSG = 2,
|
|
};
|
|
|
|
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_OFFCHANNEL,
|
|
IEEE80211_QUEUE_STOP_REASON_FLUSH,
|
|
IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
|
|
IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
|
|
|
|
IEEE80211_QUEUE_STOP_REASONS,
|
|
};
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
struct tpt_led_trigger {
|
|
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_ONCHANNEL_SCANNING: Do a software scan on only the current operating
|
|
* channel. This should not interrupt normal traffic.
|
|
* @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.
|
|
* @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
|
|
* cancelled.
|
|
*/
|
|
enum {
|
|
SCAN_SW_SCANNING,
|
|
SCAN_HW_SCANNING,
|
|
SCAN_ONCHANNEL_SCANNING,
|
|
SCAN_COMPLETED,
|
|
SCAN_ABORTED,
|
|
SCAN_HW_CANCELLED,
|
|
};
|
|
|
|
/**
|
|
* 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
|
|
* @SCAN_ABORT: Abort the scan and go back to operating channel
|
|
*/
|
|
enum mac80211_scan_state {
|
|
SCAN_DECISION,
|
|
SCAN_SET_CHANNEL,
|
|
SCAN_SEND_PROBE,
|
|
SCAN_SUSPEND,
|
|
SCAN_RESUME,
|
|
SCAN_ABORT,
|
|
};
|
|
|
|
struct ieee80211_local {
|
|
/* embed the driver visible part.
|
|
* don't cast (use the static inlines below), but we keep
|
|
* it first anyway so they become a no-op */
|
|
struct ieee80211_hw hw;
|
|
|
|
struct fq fq;
|
|
struct codel_vars *cvars;
|
|
struct codel_params cparams;
|
|
|
|
const struct ieee80211_ops *ops;
|
|
|
|
/*
|
|
* private workqueue to mac80211. mac80211 makes this accessible
|
|
* via ieee80211_queue_work()
|
|
*/
|
|
struct workqueue_struct *workqueue;
|
|
|
|
unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
|
|
int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
|
|
/* 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;
|
|
|
|
bool use_chanctx;
|
|
|
|
/* protects the aggregated multicast list and filter calls */
|
|
spinlock_t filter_lock;
|
|
|
|
/* used for uploading changed mc list */
|
|
struct work_struct reconfig_filter;
|
|
|
|
/* 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;
|
|
|
|
/* device is during a HW reconfig */
|
|
bool in_reconfig;
|
|
|
|
/* wowlan is enabled -- don't reconfig on resume */
|
|
bool wowlan;
|
|
|
|
struct work_struct radar_detected_work;
|
|
|
|
/* number of RX chains the hardware has */
|
|
u8 rx_chains;
|
|
|
|
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;
|
|
|
|
spinlock_t rx_path_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 rhltable sta_hash;
|
|
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 allmulti RX */
|
|
atomic_t iff_allmultis;
|
|
|
|
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 __rcu *scan_req;
|
|
struct ieee80211_scan_request *hw_scan_req;
|
|
struct cfg80211_chan_def scan_chandef;
|
|
enum nl80211_band hw_scan_band;
|
|
int scan_channel_idx;
|
|
int scan_ies_len;
|
|
int hw_scan_ies_bufsize;
|
|
struct cfg80211_scan_info scan_info;
|
|
|
|
struct work_struct sched_scan_stopped_work;
|
|
struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
|
|
struct cfg80211_sched_scan_request __rcu *sched_scan_req;
|
|
u8 scan_addr[ETH_ALEN];
|
|
|
|
unsigned long leave_oper_channel_time;
|
|
enum mac80211_scan_state next_scan_state;
|
|
struct delayed_work scan_work;
|
|
struct ieee80211_sub_if_data __rcu *scan_sdata;
|
|
/* For backward compatibility only -- do not use */
|
|
struct cfg80211_chan_def _oper_chandef;
|
|
|
|
/* Temporary remain-on-channel for off-channel operations */
|
|
struct ieee80211_channel *tmp_channel;
|
|
|
|
/* channel contexts */
|
|
struct list_head chanctx_list;
|
|
struct mutex chanctx_mtx;
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
struct led_trigger tx_led, rx_led, assoc_led, radio_led;
|
|
struct led_trigger tpt_led;
|
|
atomic_t tx_led_active, rx_led_active, assoc_led_active;
|
|
atomic_t radio_led_active, tpt_led_active;
|
|
struct tpt_led_trigger *tpt_led_trigger;
|
|
#endif
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
/* SNMP counters */
|
|
/* dot11CountersTable */
|
|
u32 dot11TransmittedFragmentCount;
|
|
u32 dot11MulticastTransmittedFrameCount;
|
|
u32 dot11FailedCount;
|
|
u32 dot11RetryCount;
|
|
u32 dot11MultipleRetryCount;
|
|
u32 dot11FrameDuplicateCount;
|
|
u32 dot11ReceivedFragmentCount;
|
|
u32 dot11MulticastReceivedFrameCount;
|
|
u32 dot11TransmittedFrameCount;
|
|
|
|
/* TX/RX handler statistics */
|
|
unsigned int tx_handlers_drop;
|
|
unsigned int tx_handlers_queued;
|
|
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 tx_expand_skb_head;
|
|
unsigned int tx_expand_skb_head_cloned;
|
|
unsigned int rx_expand_skb_head_defrag;
|
|
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
|
|
*/
|
|
|
|
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 ifa_notifier;
|
|
struct notifier_block ifa6_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 user_power_level; /* in dBm, for all interfaces */
|
|
|
|
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
|
|
|
|
/*
|
|
* Remain-on-channel support
|
|
*/
|
|
struct delayed_work roc_work;
|
|
struct list_head roc_list;
|
|
struct work_struct hw_roc_start, hw_roc_done;
|
|
unsigned long hw_roc_start_time;
|
|
u64 roc_cookie_counter;
|
|
|
|
struct idr ack_status_frames;
|
|
spinlock_t ack_status_lock;
|
|
|
|
struct ieee80211_sub_if_data __rcu *p2p_sdata;
|
|
|
|
/* virtual monitor interface */
|
|
struct ieee80211_sub_if_data __rcu *monitor_sdata;
|
|
struct cfg80211_chan_def monitor_chandef;
|
|
|
|
/* extended capabilities provided by mac80211 */
|
|
u8 ext_capa[8];
|
|
|
|
/* TDLS channel switch */
|
|
struct work_struct tdls_chsw_work;
|
|
struct sk_buff_head skb_queue_tdls_chsw;
|
|
};
|
|
|
|
static inline struct ieee80211_sub_if_data *
|
|
IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
|
|
{
|
|
return netdev_priv(dev);
|
|
}
|
|
|
|
static inline struct ieee80211_sub_if_data *
|
|
IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
|
|
{
|
|
return container_of(wdev, struct ieee80211_sub_if_data, wdev);
|
|
}
|
|
|
|
/* this struct represents 802.11n's RA/TID combination */
|
|
struct ieee80211_ra_tid {
|
|
u8 ra[ETH_ALEN];
|
|
u16 tid;
|
|
};
|
|
|
|
/* this struct holds the value parsing from channel switch IE */
|
|
struct ieee80211_csa_ie {
|
|
struct cfg80211_chan_def chandef;
|
|
u8 mode;
|
|
u8 count;
|
|
u8 ttl;
|
|
u16 pre_value;
|
|
};
|
|
|
|
/* Parsed Information Elements */
|
|
struct ieee802_11_elems {
|
|
const u8 *ie_start;
|
|
size_t total_len;
|
|
|
|
/* pointers to IEs */
|
|
const struct ieee80211_tdls_lnkie *lnk_id;
|
|
const struct ieee80211_ch_switch_timing *ch_sw_timing;
|
|
const u8 *ext_capab;
|
|
const u8 *ssid;
|
|
const u8 *supp_rates;
|
|
const u8 *ds_params;
|
|
const struct ieee80211_tim_ie *tim;
|
|
const u8 *challenge;
|
|
const u8 *rsn;
|
|
const u8 *erp_info;
|
|
const u8 *ext_supp_rates;
|
|
const u8 *wmm_info;
|
|
const u8 *wmm_param;
|
|
const struct ieee80211_ht_cap *ht_cap_elem;
|
|
const struct ieee80211_ht_operation *ht_operation;
|
|
const struct ieee80211_vht_cap *vht_cap_elem;
|
|
const struct ieee80211_vht_operation *vht_operation;
|
|
const struct ieee80211_meshconf_ie *mesh_config;
|
|
const u8 *mesh_id;
|
|
const u8 *peering;
|
|
const __le16 *awake_window;
|
|
const u8 *preq;
|
|
const u8 *prep;
|
|
const u8 *perr;
|
|
const struct ieee80211_rann_ie *rann;
|
|
const struct ieee80211_channel_sw_ie *ch_switch_ie;
|
|
const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
|
|
const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
|
|
const u8 *country_elem;
|
|
const u8 *pwr_constr_elem;
|
|
const u8 *cisco_dtpc_elem;
|
|
const struct ieee80211_timeout_interval_ie *timeout_int;
|
|
const u8 *opmode_notif;
|
|
const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
|
|
const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
|
|
|
|
/* length of them, respectively */
|
|
u8 ext_capab_len;
|
|
u8 ssid_len;
|
|
u8 supp_rates_len;
|
|
u8 tim_len;
|
|
u8 challenge_len;
|
|
u8 rsn_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 country_elem_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 struct txq_info *to_txq_info(struct ieee80211_txq *txq)
|
|
{
|
|
return container_of(txq, struct txq_info, txq);
|
|
}
|
|
|
|
static inline bool txq_has_queue(struct ieee80211_txq *txq)
|
|
{
|
|
struct txq_info *txqi = to_txq_info(txq);
|
|
|
|
return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
|
|
}
|
|
|
|
static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
|
|
{
|
|
return ether_addr_equal(raddr, addr) ||
|
|
is_broadcast_ether_addr(raddr);
|
|
}
|
|
|
|
static inline bool
|
|
ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
|
|
{
|
|
WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
|
|
status->flag & RX_FLAG_MACTIME_END);
|
|
if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
|
|
return true;
|
|
/* can't handle HT/VHT preamble yet */
|
|
if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
|
|
!(status->flag & (RX_FLAG_HT | RX_FLAG_VHT)))
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* This function returns the number of multicast stations connected to this
|
|
* interface. It returns -1 if that number is not tracked, that is for netdevs
|
|
* not in AP or AP_VLAN mode or when using 4addr.
|
|
*/
|
|
static inline int
|
|
ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
if (sdata->vif.type == NL80211_IFTYPE_AP)
|
|
return atomic_read(&sdata->u.ap.num_mcast_sta);
|
|
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
|
|
return atomic_read(&sdata->u.vlan.num_mcast_sta);
|
|
return -1;
|
|
}
|
|
|
|
u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
|
|
struct ieee80211_rx_status *status,
|
|
unsigned int mpdu_len,
|
|
unsigned int mpdu_offset);
|
|
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);
|
|
|
|
u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
|
|
int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
|
|
u64 *cookie, gfp_t gfp);
|
|
|
|
void ieee80211_check_fast_rx(struct sta_info *sta);
|
|
void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_clear_fast_rx(struct sta_info *sta);
|
|
|
|
/* 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);
|
|
void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_set_arp_filter(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_stop(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
|
|
__le16 fc, bool acked);
|
|
void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_handle_tspec_ac_params(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_work(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb);
|
|
int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_csa_settings *csa_settings);
|
|
int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* OCB code */
|
|
void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *bssid, const u8 *addr, u32 supp_rates);
|
|
void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
|
|
struct ocb_setup *setup);
|
|
int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* 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);
|
|
int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_csa_settings *csa_settings);
|
|
int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* scan/BSS handling */
|
|
void ieee80211_scan_work(struct work_struct *work);
|
|
int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *ssid, u8 ssid_len,
|
|
struct ieee80211_channel **channels,
|
|
unsigned int n_channels,
|
|
enum nl80211_bss_scan_width scan_width);
|
|
int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_scan_request *req);
|
|
void ieee80211_scan_cancel(struct ieee80211_local *local);
|
|
void ieee80211_run_deferred_scan(struct ieee80211_local *local);
|
|
void ieee80211_scan_rx(struct ieee80211_local *local, 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);
|
|
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_start(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_sched_scan_request *req);
|
|
int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
|
|
void ieee80211_sched_scan_end(struct ieee80211_local *local);
|
|
void ieee80211_sched_scan_stopped_work(struct work_struct *work);
|
|
|
|
/* off-channel/mgmt-tx */
|
|
void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
|
|
void ieee80211_offchannel_return(struct ieee80211_local *local);
|
|
void ieee80211_roc_setup(struct ieee80211_local *local);
|
|
void ieee80211_start_next_roc(struct ieee80211_local *local);
|
|
void ieee80211_roc_purge(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
struct ieee80211_channel *chan,
|
|
unsigned int duration, u64 *cookie);
|
|
int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
|
|
struct wireless_dev *wdev, u64 cookie);
|
|
int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
struct cfg80211_mgmt_tx_params *params, u64 *cookie);
|
|
int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
|
|
struct wireless_dev *wdev, u64 cookie);
|
|
|
|
/* channel switch handling */
|
|
void ieee80211_csa_finalize_work(struct work_struct *work);
|
|
int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
|
|
struct cfg80211_csa_settings *params);
|
|
|
|
/* interface handling */
|
|
int ieee80211_iface_init(void);
|
|
void ieee80211_iface_exit(void);
|
|
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
|
|
unsigned char name_assign_type,
|
|
struct wireless_dev **new_wdev, 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_idle_off(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);
|
|
int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
|
|
void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
|
|
void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
|
|
|
|
bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
|
|
bool update_bss);
|
|
|
|
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);
|
|
void __ieee80211_subif_start_xmit(struct sk_buff *skb,
|
|
struct net_device *dev,
|
|
u32 info_flags);
|
|
void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
|
|
struct sk_buff_head *skbs);
|
|
struct sk_buff *
|
|
ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, u32 info_flags);
|
|
void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
|
|
struct ieee80211_supported_band *sband,
|
|
int retry_count, int shift, bool send_to_cooked);
|
|
|
|
void ieee80211_check_fast_xmit(struct sta_info *sta);
|
|
void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
|
|
void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_clear_fast_xmit(struct sta_info *sta);
|
|
|
|
/* HT */
|
|
void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_sta_ht_cap *ht_cap);
|
|
bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_supported_band *sband,
|
|
const struct ieee80211_ht_cap *ht_cap_ie,
|
|
struct sta_info *sta);
|
|
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_ap_work(struct work_struct *work);
|
|
void ieee80211_request_smps_mgd_work(struct work_struct *work);
|
|
bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
|
|
enum ieee80211_smps_mode smps_mode_new);
|
|
|
|
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_start_rx_ba_session(struct sta_info *sta,
|
|
u8 dialog_token, u16 timeout,
|
|
u16 start_seq_num, u16 ba_policy, u16 tid,
|
|
u16 buf_size, bool tx, bool auto_seq);
|
|
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
|
|
enum ieee80211_agg_stop_reason reason);
|
|
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_agg_stop_reason reason);
|
|
int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
|
|
enum ieee80211_agg_stop_reason reason);
|
|
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);
|
|
|
|
u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
|
|
|
|
/* VHT */
|
|
void
|
|
ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_supported_band *sband,
|
|
const struct ieee80211_vht_cap *vht_cap_ie,
|
|
struct sta_info *sta);
|
|
enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
|
|
enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
|
|
void ieee80211_sta_set_rx_nss(struct sta_info *sta);
|
|
enum ieee80211_sta_rx_bandwidth
|
|
ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
|
|
enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
|
|
void ieee80211_sta_set_rx_nss(struct sta_info *sta);
|
|
void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_mgmt *mgmt);
|
|
u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta, u8 opmode,
|
|
enum nl80211_band band);
|
|
void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta, u8 opmode,
|
|
enum nl80211_band band);
|
|
void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_sta_vht_cap *vht_cap);
|
|
void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
|
|
u16 vht_mask[NL80211_VHT_NSS_MAX]);
|
|
|
|
/* Spectrum management */
|
|
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
/**
|
|
* ieee80211_parse_ch_switch_ie - parses channel switch IEs
|
|
* @sdata: the sdata of the interface which has received the frame
|
|
* @elems: parsed 802.11 elements received with the frame
|
|
* @current_band: indicates the current band
|
|
* @sta_flags: contains information about own capabilities and restrictions
|
|
* to decide which channel switch announcements can be accepted. Only the
|
|
* following subset of &enum ieee80211_sta_flags are evaluated:
|
|
* %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
|
|
* %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
|
|
* %IEEE80211_STA_DISABLE_160MHZ.
|
|
* @bssid: the currently connected bssid (for reporting)
|
|
* @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
|
|
All of them will be filled with if success only.
|
|
* Return: 0 on success, <0 on error and >0 if there is nothing to parse.
|
|
*/
|
|
int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee802_11_elems *elems,
|
|
enum nl80211_band current_band,
|
|
u32 sta_flags, u8 *bssid,
|
|
struct ieee80211_csa_ie *csa_ie);
|
|
|
|
/* Suspend/resume and hw reconfiguration */
|
|
int ieee80211_reconfig(struct ieee80211_local *local);
|
|
void ieee80211_stop_device(struct ieee80211_local *local);
|
|
|
|
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) &&
|
|
!test_bit(SCAN_COMPLETED, &local->scanning),
|
|
"%s: resume with hardware scan still in progress\n",
|
|
wiphy_name(hw->wiphy));
|
|
|
|
return ieee80211_reconfig(hw_to_local(hw));
|
|
}
|
|
|
|
/* utility functions/constants */
|
|
extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
|
|
int ieee80211_frame_duration(enum nl80211_band band, size_t len,
|
|
int rate, int erp, int short_preamble,
|
|
int shift);
|
|
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
|
|
bool bss_notify, bool enable_qos);
|
|
void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta, struct sk_buff *skb);
|
|
|
|
void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, int tid,
|
|
enum nl80211_band band);
|
|
|
|
static inline void
|
|
ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, int tid,
|
|
enum nl80211_band band)
|
|
{
|
|
rcu_read_lock();
|
|
__ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, int tid)
|
|
{
|
|
struct ieee80211_chanctx_conf *chanctx_conf;
|
|
|
|
rcu_read_lock();
|
|
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
|
|
if (WARN_ON(!chanctx_conf)) {
|
|
rcu_read_unlock();
|
|
kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
__ieee80211_tx_skb_tid_band(sdata, skb, tid,
|
|
chanctx_conf->def.chan->band);
|
|
rcu_read_unlock();
|
|
}
|
|
|
|
static inline void 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);
|
|
}
|
|
|
|
u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
|
|
struct ieee802_11_elems *elems,
|
|
u64 filter, u32 crc);
|
|
static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
|
|
bool action,
|
|
struct ieee802_11_elems *elems)
|
|
{
|
|
ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
|
|
}
|
|
|
|
|
|
extern const int ieee802_1d_to_ac[8];
|
|
|
|
static inline int ieee80211_ac_from_tid(int tid)
|
|
{
|
|
return ieee802_1d_to_ac[tid & 7];
|
|
}
|
|
|
|
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,
|
|
bool 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, u16 tx_time);
|
|
|
|
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
|
|
unsigned long queues,
|
|
enum queue_stop_reason reason,
|
|
bool refcounted);
|
|
void ieee80211_stop_vif_queues(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_wake_vif_queues(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
|
|
unsigned long queues,
|
|
enum queue_stop_reason reason,
|
|
bool refcounted);
|
|
void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason,
|
|
bool refcounted);
|
|
void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason,
|
|
bool refcounted);
|
|
void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
|
|
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_flush_queues(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata, bool drop);
|
|
void __ieee80211_flush_queues(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
unsigned int queues, bool drop);
|
|
|
|
static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
|
|
{
|
|
/*
|
|
* If quiescing is set, we are racing with __ieee80211_suspend.
|
|
* __ieee80211_suspend flushes the workers after setting quiescing,
|
|
* and we check quiescing / suspended before enqueing new workers.
|
|
* We should abort the worker to avoid the races below.
|
|
*/
|
|
if (local->quiescing)
|
|
return false;
|
|
|
|
/*
|
|
* We might already be suspended if the following scenario occurs:
|
|
* __ieee80211_suspend Control path
|
|
*
|
|
* if (local->quiescing)
|
|
* return;
|
|
* local->quiescing = true;
|
|
* flush_workqueue();
|
|
* queue_work(...);
|
|
* local->suspended = true;
|
|
* local->quiescing = false;
|
|
* worker starts running...
|
|
*/
|
|
if (local->suspended)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
int ieee80211_txq_setup_flows(struct ieee80211_local *local);
|
|
void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
|
|
void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta,
|
|
struct txq_info *txq, int tid);
|
|
void ieee80211_txq_purge(struct ieee80211_local *local,
|
|
struct txq_info *txqi);
|
|
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
|
|
u16 transaction, u16 auth_alg, u16 status,
|
|
const u8 *extra, size_t extra_len, const u8 *bssid,
|
|
const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
|
|
u32 tx_flags);
|
|
void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *bssid, u16 stype, u16 reason,
|
|
bool send_frame, u8 *frame_buf);
|
|
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
|
|
size_t buffer_len,
|
|
struct ieee80211_scan_ies *ie_desc,
|
|
const u8 *ie, size_t ie_len,
|
|
u8 bands_used, u32 *rate_masks,
|
|
struct cfg80211_chan_def *chandef);
|
|
struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *src, const u8 *dst,
|
|
u32 ratemask,
|
|
struct ieee80211_channel *chan,
|
|
const u8 *ssid, size_t ssid_len,
|
|
const u8 *ie, size_t ie_len,
|
|
bool directed);
|
|
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *src, const u8 *dst,
|
|
const u8 *ssid, size_t ssid_len,
|
|
const u8 *ie, size_t ie_len,
|
|
u32 ratemask, bool directed, u32 tx_flags,
|
|
struct ieee80211_channel *channel, bool scan);
|
|
|
|
u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee802_11_elems *elems,
|
|
enum nl80211_band band, u32 *basic_rates);
|
|
int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
|
|
enum ieee80211_smps_mode smps_mode);
|
|
int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
|
|
enum ieee80211_smps_mode smps_mode);
|
|
void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
|
|
|
|
size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
|
|
u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
|
|
u16 cap);
|
|
u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
|
|
const struct cfg80211_chan_def *chandef,
|
|
u16 prot_mode, bool rifs_mode);
|
|
u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
|
|
u32 cap);
|
|
u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
|
|
const struct cfg80211_chan_def *chandef);
|
|
int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
|
|
const struct ieee80211_supported_band *sband,
|
|
const u8 *srates, int srates_len, u32 *rates);
|
|
int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, bool need_basic,
|
|
enum nl80211_band band);
|
|
int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb, bool need_basic,
|
|
enum nl80211_band band);
|
|
u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
|
|
|
|
/* channel management */
|
|
bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
|
|
struct cfg80211_chan_def *chandef);
|
|
bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
|
|
struct cfg80211_chan_def *chandef);
|
|
u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
|
|
|
|
int __must_check
|
|
ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum ieee80211_chanctx_mode mode);
|
|
int __must_check
|
|
ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum ieee80211_chanctx_mode mode,
|
|
bool radar_required);
|
|
int __must_check
|
|
ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
|
|
|
|
int __must_check
|
|
ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
|
|
const struct cfg80211_chan_def *chandef,
|
|
u32 *changed);
|
|
void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
|
|
bool clear);
|
|
int ieee80211_chanctx_refcount(struct ieee80211_local *local,
|
|
struct ieee80211_chanctx *ctx);
|
|
|
|
void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
|
|
struct ieee80211_chanctx *chanctx);
|
|
void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
|
|
struct ieee80211_chanctx *ctx);
|
|
bool ieee80211_is_radar_required(struct ieee80211_local *local);
|
|
|
|
void ieee80211_dfs_cac_timer(unsigned long data);
|
|
void ieee80211_dfs_cac_timer_work(struct work_struct *work);
|
|
void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
|
|
void ieee80211_dfs_radar_detected_work(struct work_struct *work);
|
|
int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_csa_settings *csa_settings);
|
|
|
|
bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
|
|
bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
|
|
const struct ieee80211_cipher_scheme *
|
|
ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
|
|
enum nl80211_iftype iftype);
|
|
int ieee80211_cs_headroom(struct ieee80211_local *local,
|
|
struct cfg80211_crypto_settings *crypto,
|
|
enum nl80211_iftype iftype);
|
|
void ieee80211_recalc_dtim(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
|
|
const struct cfg80211_chan_def *chandef,
|
|
enum ieee80211_chanctx_mode chanmode,
|
|
u8 radar_detect);
|
|
int ieee80211_max_num_channels(struct ieee80211_local *local);
|
|
enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
|
|
void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
|
|
struct ieee80211_chanctx *ctx);
|
|
|
|
/* TDLS */
|
|
int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
|
|
const u8 *peer, u8 action_code, u8 dialog_token,
|
|
u16 status_code, u32 peer_capability,
|
|
bool initiator, const u8 *extra_ies,
|
|
size_t extra_ies_len);
|
|
int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
|
|
const u8 *peer, enum nl80211_tdls_operation oper);
|
|
void ieee80211_tdls_peer_del_work(struct work_struct *wk);
|
|
int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
|
|
const u8 *addr, u8 oper_class,
|
|
struct cfg80211_chan_def *chandef);
|
|
void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
|
|
struct net_device *dev,
|
|
const u8 *addr);
|
|
void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_tdls_chsw_work(struct work_struct *wk);
|
|
|
|
extern const struct ethtool_ops ieee80211_ethtool_ops;
|
|
|
|
#ifdef CONFIG_MAC80211_NOINLINE
|
|
#define debug_noinline noinline
|
|
#else
|
|
#define debug_noinline
|
|
#endif
|
|
|
|
#endif /* IEEE80211_I_H */
|