1172 lines
33 KiB
C
1172 lines
33 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 2007-2008 Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef IEEE80211_I_H
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#define IEEE80211_I_H
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/if_ether.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/workqueue.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <linux/etherdevice.h>
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#include <net/cfg80211.h>
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#include <net/mac80211.h>
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#include "key.h"
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#include "sta_info.h"
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struct ieee80211_local;
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/* Maximum number of broadcast/multicast frames to buffer when some of the
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* associated stations are using power saving. */
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#define AP_MAX_BC_BUFFER 128
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/* Maximum number of frames buffered to all STAs, including multicast frames.
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* Note: increasing this limit increases the potential memory requirement. Each
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* frame can be up to about 2 kB long. */
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#define TOTAL_MAX_TX_BUFFER 512
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/* Required encryption head and tailroom */
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#define IEEE80211_ENCRYPT_HEADROOM 8
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#define IEEE80211_ENCRYPT_TAILROOM 18
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/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
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* reception of at least three fragmented frames. This limit can be increased
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* by changing this define, at the cost of slower frame reassembly and
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* increased memory use (about 2 kB of RAM per entry). */
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#define IEEE80211_FRAGMENT_MAX 4
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/*
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* Time after which we ignore scan results and no longer report/use
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* them in any way.
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*/
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#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
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#define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
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struct ieee80211_fragment_entry {
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unsigned long first_frag_time;
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unsigned int seq;
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unsigned int rx_queue;
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unsigned int last_frag;
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unsigned int extra_len;
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struct sk_buff_head skb_list;
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int ccmp; /* Whether fragments were encrypted with CCMP */
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u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
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};
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struct ieee80211_bss {
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/* Yes, this is a hack */
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struct cfg80211_bss cbss;
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/* don't want to look up all the time */
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size_t ssid_len;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u8 dtim_period;
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bool wmm_used;
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unsigned long last_probe_resp;
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#ifdef CONFIG_MAC80211_MESH
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u8 *mesh_id;
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size_t mesh_id_len;
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u8 *mesh_cfg;
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#endif
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#define IEEE80211_MAX_SUPP_RATES 32
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u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
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size_t supp_rates_len;
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/*
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* During assocation, we save an ERP value from a probe response so
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* that we can feed ERP info to the driver when handling the
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* association completes. these fields probably won't be up-to-date
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* otherwise, you probably don't want to use them.
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*/
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bool has_erp_value;
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u8 erp_value;
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};
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static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_cfg;
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#endif
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return NULL;
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}
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static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_id;
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#endif
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return NULL;
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}
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static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
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{
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#ifdef CONFIG_MAC80211_MESH
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return bss->mesh_id_len;
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#endif
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return 0;
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}
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typedef unsigned __bitwise__ ieee80211_tx_result;
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#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
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#define TX_DROP ((__force ieee80211_tx_result) 1u)
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#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
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#define IEEE80211_TX_FRAGMENTED BIT(0)
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#define IEEE80211_TX_UNICAST BIT(1)
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#define IEEE80211_TX_PS_BUFFERED BIT(2)
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struct ieee80211_tx_data {
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struct sk_buff *skb;
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struct net_device *dev;
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struct ieee80211_local *local;
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta;
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struct ieee80211_key *key;
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struct ieee80211_channel *channel;
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u16 ethertype;
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unsigned int flags;
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};
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typedef unsigned __bitwise__ ieee80211_rx_result;
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#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
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#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
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#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
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#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
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#define IEEE80211_RX_IN_SCAN BIT(0)
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/* frame is destined to interface currently processed (incl. multicast frames) */
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#define IEEE80211_RX_RA_MATCH BIT(1)
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#define IEEE80211_RX_AMSDU BIT(2)
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#define IEEE80211_RX_CMNTR_REPORTED BIT(3)
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#define IEEE80211_RX_FRAGMENTED BIT(4)
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struct ieee80211_rx_data {
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struct sk_buff *skb;
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struct net_device *dev;
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struct ieee80211_local *local;
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struct ieee80211_sub_if_data *sdata;
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struct sta_info *sta;
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struct ieee80211_key *key;
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struct ieee80211_rx_status *status;
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struct ieee80211_rate *rate;
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unsigned int flags;
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int sent_ps_buffered;
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int queue;
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u32 tkip_iv32;
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u16 tkip_iv16;
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};
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struct beacon_data {
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u8 *head, *tail;
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int head_len, tail_len;
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int dtim_period;
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};
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struct ieee80211_if_ap {
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struct beacon_data *beacon;
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struct list_head vlans;
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/* yes, this looks ugly, but guarantees that we can later use
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* bitmap_empty :)
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* NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
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u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
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struct sk_buff_head ps_bc_buf;
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atomic_t num_sta_ps; /* number of stations in PS mode */
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int dtim_count;
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};
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struct ieee80211_if_wds {
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struct sta_info *sta;
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u8 remote_addr[ETH_ALEN];
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};
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struct ieee80211_if_vlan {
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struct list_head list;
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};
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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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atomic_t estab_plinks;
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};
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#define PREQ_Q_F_START 0x1
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#define PREQ_Q_F_REFRESH 0x2
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struct mesh_preq_queue {
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struct list_head list;
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u8 dst[ETH_ALEN];
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u8 flags;
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};
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enum ieee80211_mgd_state {
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IEEE80211_MGD_STATE_IDLE,
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IEEE80211_MGD_STATE_PROBE,
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IEEE80211_MGD_STATE_AUTH,
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IEEE80211_MGD_STATE_ASSOC,
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};
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struct ieee80211_mgd_work {
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struct list_head list;
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struct ieee80211_bss *bss;
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int ie_len;
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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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unsigned long timeout;
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enum ieee80211_mgd_state state;
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u16 auth_alg, auth_transaction;
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int tries;
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u8 key[WLAN_KEY_LEN_WEP104];
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u8 key_len, key_idx;
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/* must be last */
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u8 ie[0]; /* for auth or assoc frame, not probe */
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};
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/* flags used in struct ieee80211_if_managed.flags */
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enum ieee80211_sta_flags {
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IEEE80211_STA_BEACON_POLL = BIT(0),
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IEEE80211_STA_CONNECTION_POLL = BIT(1),
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IEEE80211_STA_CONTROL_PORT = BIT(2),
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IEEE80211_STA_WMM_ENABLED = BIT(3),
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IEEE80211_STA_DISABLE_11N = BIT(4),
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IEEE80211_STA_CSA_RECEIVED = BIT(5),
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IEEE80211_STA_MFP_ENABLED = BIT(6),
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};
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/* flags for MLME request */
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enum ieee80211_sta_request {
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IEEE80211_STA_REQ_SCAN,
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};
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struct ieee80211_if_managed {
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struct timer_list timer;
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struct timer_list conn_mon_timer;
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struct timer_list bcn_mon_timer;
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struct timer_list chswitch_timer;
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struct work_struct work;
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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_loss_work;
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unsigned long probe_timeout;
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int probe_send_count;
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struct mutex mtx;
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struct ieee80211_bss *associated;
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struct ieee80211_mgd_work *old_associate_work;
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struct list_head work_list;
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u8 bssid[ETH_ALEN];
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u16 aid;
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u16 capab;
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struct sk_buff_head skb_queue;
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unsigned long timers_running; /* used for quiesce/restart */
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bool powersave; /* powersave requested for this iface */
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unsigned long request;
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unsigned int flags;
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u32 beacon_crc;
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enum {
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IEEE80211_MFP_DISABLED,
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IEEE80211_MFP_OPTIONAL,
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IEEE80211_MFP_REQUIRED
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} mfp; /* management frame protection */
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int wmm_last_param_set;
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};
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enum ieee80211_ibss_request {
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IEEE80211_IBSS_REQ_RUN = 0,
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};
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struct ieee80211_if_ibss {
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struct timer_list timer;
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struct work_struct work;
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struct sk_buff_head skb_queue;
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unsigned long request;
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unsigned long last_scan_completed;
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bool timer_running;
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bool fixed_bssid;
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bool fixed_channel;
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bool privacy;
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u8 bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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u8 ssid_len, ie_len;
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u8 *ie;
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struct ieee80211_channel *channel;
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unsigned long ibss_join_req;
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/* probe response/beacon for IBSS */
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struct sk_buff *presp, *skb;
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enum {
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IEEE80211_IBSS_MLME_SEARCH,
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IEEE80211_IBSS_MLME_JOINED,
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} state;
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};
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struct ieee80211_if_mesh {
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struct work_struct work;
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struct timer_list housekeeping_timer;
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struct timer_list mesh_path_timer;
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struct sk_buff_head skb_queue;
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unsigned long timers_running;
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unsigned long wrkq_flags;
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u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
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size_t mesh_id_len;
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/* Active Path Selection Protocol Identifier */
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u8 mesh_pp_id[4];
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/* Active Path Selection Metric Identifier */
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u8 mesh_pm_id[4];
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/* Congestion Control Mode Identifier */
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u8 mesh_cc_id[4];
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/* Local mesh Destination Sequence Number */
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u32 dsn;
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/* Last used PREQ ID */
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u32 preq_id;
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atomic_t mpaths;
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/* Timestamp of last DSN update */
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unsigned long last_dsn_update;
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/* Timestamp of last DSN sent */
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unsigned long last_preq;
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struct mesh_rmc *rmc;
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spinlock_t mesh_preq_queue_lock;
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struct mesh_preq_queue preq_queue;
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int preq_queue_len;
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struct mesh_stats mshstats;
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struct mesh_config mshcfg;
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u32 mesh_seqnum;
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bool accepting_plinks;
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};
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#ifdef CONFIG_MAC80211_MESH
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#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
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do { (msh)->mshstats.name++; } while (0)
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#else
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#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
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do { } while (0)
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#endif
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/**
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* enum ieee80211_sub_if_data_flags - virtual interface flags
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*
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* @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
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* @IEEE80211_SDATA_PROMISC: interface is promisc
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* @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
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* @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
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* associated stations and deliver multicast frames both
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* back to wireless media and to the local net stack.
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*/
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enum ieee80211_sub_if_data_flags {
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IEEE80211_SDATA_ALLMULTI = BIT(0),
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IEEE80211_SDATA_PROMISC = BIT(1),
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IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
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IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
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};
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struct ieee80211_sub_if_data {
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struct list_head list;
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struct wireless_dev wdev;
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/* keys */
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struct list_head key_list;
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struct net_device *dev;
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struct ieee80211_local *local;
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unsigned int flags;
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int drop_unencrypted;
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/*
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* keep track of whether the HT opmode (stored in
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* vif.bss_info.ht_operation_mode) is valid.
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*/
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bool ht_opmode_valid;
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/* Fragment table for host-based reassembly */
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struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
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unsigned int fragment_next;
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#define NUM_DEFAULT_KEYS 4
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#define NUM_DEFAULT_MGMT_KEYS 2
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struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
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struct ieee80211_key *default_key;
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struct ieee80211_key *default_mgmt_key;
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u16 sequence_number;
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/*
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* AP this belongs to: self in AP mode and
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* corresponding AP in VLAN mode, NULL for
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* all others (might be needed later in IBSS)
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*/
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struct ieee80211_if_ap *bss;
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int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
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int max_ratectrl_rateidx; /* max TX rateidx for rate control */
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union {
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struct ieee80211_if_ap ap;
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struct ieee80211_if_wds wds;
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struct ieee80211_if_vlan vlan;
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struct ieee80211_if_managed mgd;
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struct ieee80211_if_ibss ibss;
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#ifdef CONFIG_MAC80211_MESH
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struct ieee80211_if_mesh mesh;
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#endif
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u32 mntr_flags;
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} u;
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct dentry *debugfsdir;
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union {
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struct {
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struct dentry *drop_unencrypted;
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struct dentry *bssid;
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struct dentry *aid;
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struct dentry *capab;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
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} sta;
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struct {
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struct dentry *drop_unencrypted;
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struct dentry *num_sta_ps;
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struct dentry *dtim_count;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
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struct dentry *num_buffered_multicast;
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} ap;
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struct {
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struct dentry *drop_unencrypted;
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struct dentry *peer;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
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} wds;
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struct {
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struct dentry *drop_unencrypted;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
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} vlan;
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struct {
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struct dentry *mode;
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} monitor;
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} debugfs;
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struct {
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struct dentry *default_key;
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struct dentry *default_mgmt_key;
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} common_debugfs;
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#ifdef CONFIG_MAC80211_MESH
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struct dentry *mesh_stats_dir;
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struct {
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struct dentry *fwded_mcast;
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struct dentry *fwded_unicast;
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struct dentry *fwded_frames;
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struct dentry *dropped_frames_ttl;
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struct dentry *dropped_frames_no_route;
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struct dentry *estab_plinks;
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struct timer_list mesh_path_timer;
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} mesh_stats;
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struct dentry *mesh_config_dir;
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struct {
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struct dentry *dot11MeshRetryTimeout;
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struct dentry *dot11MeshConfirmTimeout;
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struct dentry *dot11MeshHoldingTimeout;
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struct dentry *dot11MeshMaxRetries;
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struct dentry *dot11MeshTTL;
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struct dentry *auto_open_plinks;
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struct dentry *dot11MeshMaxPeerLinks;
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|
struct dentry *dot11MeshHWMPactivePathTimeout;
|
|
struct dentry *dot11MeshHWMPpreqMinInterval;
|
|
struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
|
|
struct dentry *dot11MeshHWMPmaxPREQretries;
|
|
struct dentry *path_refresh_time;
|
|
struct dentry *min_discovery_timeout;
|
|
} mesh_config;
|
|
#endif
|
|
|
|
#endif
|
|
/* must be last, dynamically sized area in this! */
|
|
struct ieee80211_vif vif;
|
|
};
|
|
|
|
static inline
|
|
struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
|
|
{
|
|
return container_of(p, struct ieee80211_sub_if_data, vif);
|
|
}
|
|
|
|
static inline void
|
|
ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
|
|
u8 mesh_id_len, u8 *mesh_id)
|
|
{
|
|
#ifdef CONFIG_MAC80211_MESH
|
|
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
|
|
ifmsh->mesh_id_len = mesh_id_len;
|
|
memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
|
|
#else
|
|
WARN_ON(1);
|
|
#endif
|
|
}
|
|
|
|
enum {
|
|
IEEE80211_RX_MSG = 1,
|
|
IEEE80211_TX_STATUS_MSG = 2,
|
|
IEEE80211_DELBA_MSG = 3,
|
|
IEEE80211_ADDBA_MSG = 4,
|
|
};
|
|
|
|
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,
|
|
};
|
|
|
|
/**
|
|
* 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_OFF_CHANNEL: We're off our operating channel for scanning,
|
|
* gets only set in conjunction with SCAN_SW_SCANNING
|
|
*/
|
|
enum {
|
|
SCAN_SW_SCANNING,
|
|
SCAN_HW_SCANNING,
|
|
SCAN_OFF_CHANNEL,
|
|
};
|
|
|
|
/**
|
|
* 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_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
|
|
* about us leaving the channel and stop all associated STA interfaces
|
|
* @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
|
|
* AP about us being back and restart all associated STA interfaces
|
|
*/
|
|
enum mac80211_scan_state {
|
|
SCAN_DECISION,
|
|
SCAN_SET_CHANNEL,
|
|
SCAN_SEND_PROBE,
|
|
SCAN_LEAVE_OPER_CHANNEL,
|
|
SCAN_ENTER_OPER_CHANNEL,
|
|
};
|
|
|
|
struct ieee80211_local {
|
|
/* embed the driver visible part.
|
|
* don't cast (use the static inlines below), but we keep
|
|
* it first anyway so they become a no-op */
|
|
struct ieee80211_hw hw;
|
|
|
|
const struct ieee80211_ops *ops;
|
|
|
|
/*
|
|
* private workqueue to mac80211. mac80211 makes this accessible
|
|
* via ieee80211_queue_work()
|
|
*/
|
|
struct workqueue_struct *workqueue;
|
|
|
|
unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
|
|
/* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
|
|
spinlock_t queue_stop_reason_lock;
|
|
|
|
int open_count;
|
|
int monitors, cooked_mntrs;
|
|
/* number of interfaces with corresponding FIF_ flags */
|
|
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
|
|
unsigned int filter_flags; /* FIF_* */
|
|
struct iw_statistics wstats;
|
|
|
|
/* 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 dev_addr_list *mc_list;
|
|
int mc_count;
|
|
|
|
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;
|
|
|
|
/*
|
|
* quiescing is true during the suspend process _only_ to
|
|
* ease timer cancelling etc.
|
|
*/
|
|
bool quiescing;
|
|
|
|
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;
|
|
|
|
/* Station data */
|
|
/*
|
|
* The lock only protects the list, hash, timer and counter
|
|
* against manipulation, reads are done in RCU. Additionally,
|
|
* the lock protects each BSS's TIM bitmap.
|
|
*/
|
|
spinlock_t sta_lock;
|
|
unsigned long num_sta;
|
|
struct list_head sta_list;
|
|
struct sta_info *sta_hash[STA_HASH_SIZE];
|
|
struct timer_list sta_cleanup;
|
|
int sta_generation;
|
|
|
|
struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
|
|
struct tasklet_struct tx_pending_tasklet;
|
|
|
|
/*
|
|
* This lock is used to prevent concurrent A-MPDU
|
|
* session start/stop processing, this thus also
|
|
* synchronises the ->ampdu_action() callback to
|
|
* drivers and limits it to one at a time.
|
|
*/
|
|
spinlock_t ampdu_lock;
|
|
|
|
/* number of interfaces with corresponding IFF_ flags */
|
|
atomic_t iff_allmultis, iff_promiscs;
|
|
|
|
struct rate_control_ref *rate_ctrl;
|
|
|
|
struct crypto_blkcipher *wep_tx_tfm;
|
|
struct crypto_blkcipher *wep_rx_tfm;
|
|
u32 wep_iv;
|
|
|
|
/* see iface.c */
|
|
struct list_head interfaces;
|
|
struct mutex iflist_mtx;
|
|
|
|
/*
|
|
* Key lock, protects sdata's key_list and sta_info's
|
|
* key pointers (write access, they're RCU.)
|
|
*/
|
|
spinlock_t key_lock;
|
|
|
|
|
|
/* Scanning and BSS list */
|
|
struct mutex scan_mtx;
|
|
unsigned long scanning;
|
|
struct cfg80211_ssid scan_ssid;
|
|
struct cfg80211_scan_request *int_scan_req;
|
|
struct cfg80211_scan_request *scan_req;
|
|
struct ieee80211_channel *scan_channel;
|
|
const u8 *orig_ies;
|
|
int orig_ies_len;
|
|
int scan_channel_idx;
|
|
int scan_ies_len;
|
|
|
|
enum mac80211_scan_state next_scan_state;
|
|
struct delayed_work scan_work;
|
|
struct ieee80211_sub_if_data *scan_sdata;
|
|
enum nl80211_channel_type oper_channel_type;
|
|
struct ieee80211_channel *oper_channel, *csa_channel;
|
|
|
|
/* SNMP counters */
|
|
/* dot11CountersTable */
|
|
u32 dot11TransmittedFragmentCount;
|
|
u32 dot11MulticastTransmittedFrameCount;
|
|
u32 dot11FailedCount;
|
|
u32 dot11RetryCount;
|
|
u32 dot11MultipleRetryCount;
|
|
u32 dot11FrameDuplicateCount;
|
|
u32 dot11ReceivedFragmentCount;
|
|
u32 dot11MulticastReceivedFrameCount;
|
|
u32 dot11TransmittedFrameCount;
|
|
|
|
#ifdef CONFIG_MAC80211_LEDS
|
|
int tx_led_counter, rx_led_counter;
|
|
struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
|
|
char tx_led_name[32], rx_led_name[32],
|
|
assoc_led_name[32], radio_led_name[32];
|
|
#endif
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct work_struct sta_debugfs_add;
|
|
#endif
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
/* TX/RX handler statistics */
|
|
unsigned int tx_handlers_drop;
|
|
unsigned int tx_handlers_queued;
|
|
unsigned int tx_handlers_drop_unencrypted;
|
|
unsigned int tx_handlers_drop_fragment;
|
|
unsigned int tx_handlers_drop_wep;
|
|
unsigned int tx_handlers_drop_not_assoc;
|
|
unsigned int tx_handlers_drop_unauth_port;
|
|
unsigned int rx_handlers_drop;
|
|
unsigned int rx_handlers_queued;
|
|
unsigned int rx_handlers_drop_nullfunc;
|
|
unsigned int rx_handlers_drop_defrag;
|
|
unsigned int rx_handlers_drop_short;
|
|
unsigned int rx_handlers_drop_passive_scan;
|
|
unsigned int tx_expand_skb_head;
|
|
unsigned int tx_expand_skb_head_cloned;
|
|
unsigned int rx_expand_skb_head;
|
|
unsigned int rx_expand_skb_head2;
|
|
unsigned int rx_handlers_fragments;
|
|
unsigned int tx_status_drop;
|
|
#define I802_DEBUG_INC(c) (c)++
|
|
#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
#define I802_DEBUG_INC(c) do { } while (0)
|
|
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
|
|
|
|
int total_ps_buffered; /* total number of all buffered unicast and
|
|
* multicast packets for power saving stations
|
|
*/
|
|
int wifi_wme_noack_test;
|
|
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
|
|
|
|
bool pspolling;
|
|
/*
|
|
* PS can only be enabled when we have exactly one managed
|
|
* interface (and monitors) in PS, this then points there.
|
|
*/
|
|
struct ieee80211_sub_if_data *ps_sdata;
|
|
struct work_struct dynamic_ps_enable_work;
|
|
struct work_struct dynamic_ps_disable_work;
|
|
struct timer_list dynamic_ps_timer;
|
|
struct notifier_block network_latency_notifier;
|
|
|
|
int user_power_level; /* in dBm */
|
|
int power_constr_level; /* in dBm */
|
|
|
|
struct work_struct restart_work;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct local_debugfsdentries {
|
|
struct dentry *rcdir;
|
|
struct dentry *rcname;
|
|
struct dentry *frequency;
|
|
struct dentry *total_ps_buffered;
|
|
struct dentry *wep_iv;
|
|
struct dentry *tsf;
|
|
struct dentry *queues;
|
|
struct dentry *reset;
|
|
struct dentry *noack;
|
|
struct dentry *statistics;
|
|
struct local_debugfsdentries_statsdentries {
|
|
struct dentry *transmitted_fragment_count;
|
|
struct dentry *multicast_transmitted_frame_count;
|
|
struct dentry *failed_count;
|
|
struct dentry *retry_count;
|
|
struct dentry *multiple_retry_count;
|
|
struct dentry *frame_duplicate_count;
|
|
struct dentry *received_fragment_count;
|
|
struct dentry *multicast_received_frame_count;
|
|
struct dentry *transmitted_frame_count;
|
|
struct dentry *wep_undecryptable_count;
|
|
struct dentry *num_scans;
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
struct dentry *tx_handlers_drop;
|
|
struct dentry *tx_handlers_queued;
|
|
struct dentry *tx_handlers_drop_unencrypted;
|
|
struct dentry *tx_handlers_drop_fragment;
|
|
struct dentry *tx_handlers_drop_wep;
|
|
struct dentry *tx_handlers_drop_not_assoc;
|
|
struct dentry *tx_handlers_drop_unauth_port;
|
|
struct dentry *rx_handlers_drop;
|
|
struct dentry *rx_handlers_queued;
|
|
struct dentry *rx_handlers_drop_nullfunc;
|
|
struct dentry *rx_handlers_drop_defrag;
|
|
struct dentry *rx_handlers_drop_short;
|
|
struct dentry *rx_handlers_drop_passive_scan;
|
|
struct dentry *tx_expand_skb_head;
|
|
struct dentry *tx_expand_skb_head_cloned;
|
|
struct dentry *rx_expand_skb_head;
|
|
struct dentry *rx_expand_skb_head2;
|
|
struct dentry *rx_handlers_fragments;
|
|
struct dentry *tx_status_drop;
|
|
#endif
|
|
struct dentry *dot11ACKFailureCount;
|
|
struct dentry *dot11RTSFailureCount;
|
|
struct dentry *dot11FCSErrorCount;
|
|
struct dentry *dot11RTSSuccessCount;
|
|
} stats;
|
|
struct dentry *stations;
|
|
struct dentry *keys;
|
|
} debugfs;
|
|
#endif
|
|
};
|
|
|
|
static inline struct ieee80211_sub_if_data *
|
|
IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
|
|
{
|
|
return netdev_priv(dev);
|
|
}
|
|
|
|
/* this struct represents 802.11n's RA/TID combination */
|
|
struct ieee80211_ra_tid {
|
|
u8 ra[ETH_ALEN];
|
|
u16 tid;
|
|
};
|
|
|
|
/* Parsed Information Elements */
|
|
struct ieee802_11_elems {
|
|
u8 *ie_start;
|
|
size_t total_len;
|
|
|
|
/* pointers to IEs */
|
|
u8 *ssid;
|
|
u8 *supp_rates;
|
|
u8 *fh_params;
|
|
u8 *ds_params;
|
|
u8 *cf_params;
|
|
struct ieee80211_tim_ie *tim;
|
|
u8 *ibss_params;
|
|
u8 *challenge;
|
|
u8 *wpa;
|
|
u8 *rsn;
|
|
u8 *erp_info;
|
|
u8 *ext_supp_rates;
|
|
u8 *wmm_info;
|
|
u8 *wmm_param;
|
|
struct ieee80211_ht_cap *ht_cap_elem;
|
|
struct ieee80211_ht_info *ht_info_elem;
|
|
u8 *mesh_config;
|
|
u8 *mesh_id;
|
|
u8 *peer_link;
|
|
u8 *preq;
|
|
u8 *prep;
|
|
u8 *perr;
|
|
u8 *ch_switch_elem;
|
|
u8 *country_elem;
|
|
u8 *pwr_constr_elem;
|
|
u8 *quiet_elem; /* first quite element */
|
|
u8 *timeout_int;
|
|
|
|
/* length of them, respectively */
|
|
u8 ssid_len;
|
|
u8 supp_rates_len;
|
|
u8 fh_params_len;
|
|
u8 ds_params_len;
|
|
u8 cf_params_len;
|
|
u8 tim_len;
|
|
u8 ibss_params_len;
|
|
u8 challenge_len;
|
|
u8 wpa_len;
|
|
u8 rsn_len;
|
|
u8 erp_info_len;
|
|
u8 ext_supp_rates_len;
|
|
u8 wmm_info_len;
|
|
u8 wmm_param_len;
|
|
u8 mesh_config_len;
|
|
u8 mesh_id_len;
|
|
u8 peer_link_len;
|
|
u8 preq_len;
|
|
u8 prep_len;
|
|
u8 perr_len;
|
|
u8 ch_switch_elem_len;
|
|
u8 country_elem_len;
|
|
u8 pwr_constr_elem_len;
|
|
u8 quiet_elem_len;
|
|
u8 num_of_quiet_elem; /* can be more the one */
|
|
u8 timeout_int_len;
|
|
};
|
|
|
|
static inline struct ieee80211_local *hw_to_local(
|
|
struct ieee80211_hw *hw)
|
|
{
|
|
return container_of(hw, struct ieee80211_local, hw);
|
|
}
|
|
|
|
static inline struct ieee80211_hw *local_to_hw(
|
|
struct ieee80211_local *local)
|
|
{
|
|
return &local->hw;
|
|
}
|
|
|
|
|
|
static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
|
|
{
|
|
return compare_ether_addr(raddr, addr) == 0 ||
|
|
is_broadcast_ether_addr(raddr);
|
|
}
|
|
|
|
|
|
int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
|
|
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
|
|
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
|
|
u32 changed);
|
|
void ieee80211_configure_filter(struct ieee80211_local *local);
|
|
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* STA code */
|
|
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_auth_request *req);
|
|
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_assoc_request *req);
|
|
int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_deauth_request *req,
|
|
void *cookie);
|
|
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_disassoc_request *req,
|
|
void *cookie);
|
|
ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
|
|
struct sk_buff *skb);
|
|
void ieee80211_send_pspoll(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
|
|
int ieee80211_max_network_latency(struct notifier_block *nb,
|
|
unsigned long data, void *dummy);
|
|
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_channel_sw_ie *sw_elem,
|
|
struct ieee80211_bss *bss);
|
|
void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_sta_restart(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);
|
|
ieee80211_rx_result
|
|
ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
|
|
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
|
|
u8 *bssid, u8 *addr, u32 supp_rates);
|
|
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_ibss_params *params);
|
|
int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
|
|
|
|
/* scan/BSS handling */
|
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void ieee80211_scan_work(struct work_struct *work);
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int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
|
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const u8 *ssid, u8 ssid_len);
|
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int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
|
|
struct cfg80211_scan_request *req);
|
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void ieee80211_scan_cancel(struct ieee80211_local *local);
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|
ieee80211_rx_result
|
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ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
|
|
|
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void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
|
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struct ieee80211_bss *
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ieee80211_bss_info_update(struct ieee80211_local *local,
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struct ieee80211_rx_status *rx_status,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len,
|
|
struct ieee802_11_elems *elems,
|
|
struct ieee80211_channel *channel,
|
|
bool beacon);
|
|
struct ieee80211_bss *
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|
ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
|
|
u8 *ssid, u8 ssid_len);
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void ieee80211_rx_bss_put(struct ieee80211_local *local,
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|
struct ieee80211_bss *bss);
|
|
|
|
/* interface handling */
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|
int ieee80211_if_add(struct ieee80211_local *local, const char *name,
|
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struct net_device **new_dev, enum nl80211_iftype type,
|
|
struct vif_params *params);
|
|
int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
|
|
enum nl80211_iftype type);
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|
void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
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|
void ieee80211_remove_interfaces(struct ieee80211_local *local);
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|
u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
|
|
void ieee80211_recalc_idle(struct ieee80211_local *local);
|
|
|
|
/* tx handling */
|
|
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
|
|
void ieee80211_tx_pending(unsigned long data);
|
|
int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
|
|
/* HT */
|
|
void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
|
|
struct ieee80211_ht_cap *ht_cap_ie,
|
|
struct ieee80211_sta_ht_cap *ht_cap);
|
|
void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
|
|
void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
|
|
const u8 *da, u16 tid,
|
|
u16 initiator, u16 reason_code);
|
|
|
|
void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
|
|
u16 tid, u16 initiator, u16 reason);
|
|
void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
|
|
u16 initiator, u16 reason);
|
|
void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
|
|
void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt, size_t len);
|
|
void ieee80211_process_addba_resp(struct ieee80211_local *local,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
void ieee80211_process_addba_request(struct ieee80211_local *local,
|
|
struct sta_info *sta,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
|
|
int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
|
|
enum ieee80211_back_parties initiator);
|
|
|
|
/* Spectrum management */
|
|
void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_mgmt *mgmt,
|
|
size_t len);
|
|
|
|
/* Suspend/resume and hw reconfiguration */
|
|
int ieee80211_reconfig(struct ieee80211_local *local);
|
|
|
|
#ifdef CONFIG_PM
|
|
int __ieee80211_suspend(struct ieee80211_hw *hw);
|
|
|
|
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
|
|
{
|
|
return ieee80211_reconfig(hw_to_local(hw));
|
|
}
|
|
#else
|
|
static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int __ieee80211_resume(struct ieee80211_hw *hw)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/* utility functions/constants */
|
|
extern void *mac80211_wiphy_privid; /* for wiphy privid */
|
|
u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
|
|
enum nl80211_iftype type);
|
|
int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
|
|
int rate, int erp, int short_preamble);
|
|
void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
|
|
struct ieee80211_hdr *hdr, const u8 *tsc,
|
|
gfp_t gfp);
|
|
void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
|
|
void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
|
|
int encrypt);
|
|
void ieee802_11_parse_elems(u8 *start, size_t len,
|
|
struct ieee802_11_elems *elems);
|
|
u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
|
|
struct ieee802_11_elems *elems,
|
|
u64 filter, u32 crc);
|
|
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
|
|
enum ieee80211_band band);
|
|
|
|
void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
|
|
void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
|
|
void ieee80211_dynamic_ps_timer(unsigned long data);
|
|
void ieee80211_send_nullfunc(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata,
|
|
int powersave);
|
|
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
|
|
struct ieee80211_hdr *hdr);
|
|
void ieee80211_beacon_loss_work(struct work_struct *work);
|
|
|
|
void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
|
|
enum queue_stop_reason reason);
|
|
void ieee80211_add_pending_skb(struct ieee80211_local *local,
|
|
struct sk_buff *skb);
|
|
int ieee80211_add_pending_skbs(struct ieee80211_local *local,
|
|
struct sk_buff_head *skbs);
|
|
|
|
void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
|
|
u16 transaction, u16 auth_alg,
|
|
u8 *extra, size_t extra_len, const u8 *bssid,
|
|
const u8 *key, u8 key_len, u8 key_idx);
|
|
int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
|
|
const u8 *ie, size_t ie_len);
|
|
void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
|
|
const u8 *ssid, size_t ssid_len,
|
|
const u8 *ie, size_t ie_len);
|
|
|
|
void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
|
|
const size_t supp_rates_len,
|
|
const u8 *supp_rates);
|
|
u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
|
|
struct ieee802_11_elems *elems,
|
|
enum ieee80211_band band);
|
|
|
|
#ifdef CONFIG_MAC80211_NOINLINE
|
|
#define debug_noinline noinline
|
|
#else
|
|
#define debug_noinline
|
|
#endif
|
|
|
|
#endif /* IEEE80211_I_H */
|