800 lines
24 KiB
C
800 lines
24 KiB
C
/*
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* Copyright 2002-2005, Instant802 Networks, Inc.
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* Copyright 2005, Devicescape Software, Inc.
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* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef IEEE80211_I_H
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#define IEEE80211_I_H
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/if_ether.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/netdevice.h>
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#include <linux/skbuff.h>
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#include <linux/workqueue.h>
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#include <linux/types.h>
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#include <linux/spinlock.h>
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#include <net/wireless.h>
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#include "ieee80211_key.h"
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#include "sta_info.h"
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/* ieee80211.o internal definitions, etc. These are not included into
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* low-level drivers. */
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#ifndef ETH_P_PAE
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#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
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#endif /* ETH_P_PAE */
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#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
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struct ieee80211_local;
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#define BIT(x) (1 << (x))
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#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
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/* Maximum number of broadcast/multicast frames to buffer when some of the
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* associated stations are using power saving. */
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#define AP_MAX_BC_BUFFER 128
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/* Maximum number of frames buffered to all STAs, including multicast frames.
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* Note: increasing this limit increases the potential memory requirement. Each
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* frame can be up to about 2 kB long. */
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#define TOTAL_MAX_TX_BUFFER 512
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/* Required encryption head and tailroom */
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#define IEEE80211_ENCRYPT_HEADROOM 8
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#define IEEE80211_ENCRYPT_TAILROOM 12
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/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
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* reception of at least three fragmented frames. This limit can be increased
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* by changing this define, at the cost of slower frame reassembly and
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* increased memory use (about 2 kB of RAM per entry). */
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#define IEEE80211_FRAGMENT_MAX 4
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struct ieee80211_fragment_entry {
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unsigned long first_frag_time;
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unsigned int seq;
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unsigned int rx_queue;
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unsigned int last_frag;
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unsigned int extra_len;
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struct sk_buff_head skb_list;
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int ccmp; /* Whether fragments were encrypted with CCMP */
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u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
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};
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struct ieee80211_sta_bss {
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struct list_head list;
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struct ieee80211_sta_bss *hnext;
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atomic_t users;
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u8 bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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size_t ssid_len;
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u16 capability; /* host byte order */
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int hw_mode;
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int channel;
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int freq;
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int rssi, signal, noise;
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u8 *wpa_ie;
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size_t wpa_ie_len;
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u8 *rsn_ie;
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size_t rsn_ie_len;
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u8 *wmm_ie;
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size_t wmm_ie_len;
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#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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int beacon_int;
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u64 timestamp;
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int probe_resp;
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unsigned long last_update;
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};
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typedef enum {
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TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
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} ieee80211_txrx_result;
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struct ieee80211_txrx_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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u16 fc, ethertype;
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struct ieee80211_key *key;
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unsigned int fragmented:1; /* whether the MSDU was fragmented */
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union {
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struct {
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struct ieee80211_tx_control *control;
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unsigned int unicast:1;
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unsigned int ps_buffered:1;
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unsigned int short_preamble:1;
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unsigned int probe_last_frag:1;
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struct ieee80211_hw_mode *mode;
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struct ieee80211_rate *rate;
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/* use this rate (if set) for last fragment; rate can
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* be set to lower rate for the first fragments, e.g.,
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* when using CTS protection with IEEE 802.11g. */
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struct ieee80211_rate *last_frag_rate;
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int last_frag_hwrate;
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int mgmt_interface;
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/* Extra fragments (in addition to the first fragment
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* in skb) */
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int num_extra_frag;
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struct sk_buff **extra_frag;
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} tx;
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struct {
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struct ieee80211_rx_status *status;
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int sent_ps_buffered;
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int queue;
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int load;
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unsigned int in_scan:1;
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/* frame is destined to interface currently processed
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* (including multicast frames) */
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unsigned int ra_match:1;
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} rx;
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} u;
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};
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/* Stored in sk_buff->cb */
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struct ieee80211_tx_packet_data {
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int ifindex;
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unsigned long jiffies;
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unsigned int req_tx_status:1;
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unsigned int do_not_encrypt:1;
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unsigned int requeue:1;
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unsigned int mgmt_iface:1;
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unsigned int queue:4;
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};
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struct ieee80211_tx_stored_packet {
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struct ieee80211_tx_control control;
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struct sk_buff *skb;
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int num_extra_frag;
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struct sk_buff **extra_frag;
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int last_frag_rateidx;
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int last_frag_hwrate;
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struct ieee80211_rate *last_frag_rate;
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unsigned int last_frag_rate_ctrl_probe:1;
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};
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typedef ieee80211_txrx_result (*ieee80211_tx_handler)
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(struct ieee80211_txrx_data *tx);
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typedef ieee80211_txrx_result (*ieee80211_rx_handler)
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(struct ieee80211_txrx_data *rx);
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struct ieee80211_if_ap {
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u8 *beacon_head, *beacon_tail;
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int beacon_head_len, beacon_tail_len;
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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size_t ssid_len;
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u8 *generic_elem;
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size_t generic_elem_len;
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/* yes, this looks ugly, but guarantees that we can later use
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* bitmap_empty :)
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* NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
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u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
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atomic_t num_sta_ps; /* number of stations in PS mode */
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struct sk_buff_head ps_bc_buf;
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int dtim_period, dtim_count;
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int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
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int max_ratectrl_rateidx; /* max TX rateidx for rate control */
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int num_beacons; /* number of TXed beacon frames for this BSS */
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};
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struct ieee80211_if_wds {
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u8 remote_addr[ETH_ALEN];
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struct sta_info *sta;
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};
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struct ieee80211_if_vlan {
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u8 id;
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};
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struct ieee80211_if_sta {
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enum {
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IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
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IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
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IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
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} state;
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struct timer_list timer;
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struct work_struct work;
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u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
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u8 ssid[IEEE80211_MAX_SSID_LEN];
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size_t ssid_len;
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u16 aid;
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u16 ap_capab, capab;
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u8 *extra_ie; /* to be added to the end of AssocReq */
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size_t extra_ie_len;
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/* The last AssocReq/Resp IEs */
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u8 *assocreq_ies, *assocresp_ies;
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size_t assocreq_ies_len, assocresp_ies_len;
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int auth_tries, assoc_tries;
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unsigned int ssid_set:1;
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unsigned int bssid_set:1;
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unsigned int prev_bssid_set:1;
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unsigned int authenticated:1;
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unsigned int associated:1;
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unsigned int probereq_poll:1;
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unsigned int use_protection:1;
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unsigned int create_ibss:1;
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unsigned int mixed_cell:1;
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unsigned int wmm_enabled:1;
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unsigned int auto_ssid_sel:1;
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unsigned int auto_bssid_sel:1;
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unsigned int auto_channel_sel:1;
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#define IEEE80211_STA_REQ_SCAN 0
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#define IEEE80211_STA_REQ_AUTH 1
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#define IEEE80211_STA_REQ_RUN 2
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unsigned long request;
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struct sk_buff_head skb_queue;
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int key_mgmt;
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unsigned long last_probe;
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#define IEEE80211_AUTH_ALG_OPEN BIT(0)
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#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
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#define IEEE80211_AUTH_ALG_LEAP BIT(2)
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unsigned int auth_algs; /* bitfield of allowed auth algs */
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int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
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int auth_transaction;
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unsigned long ibss_join_req;
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struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
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u32 supp_rates_bits;
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int wmm_last_param_set;
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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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unsigned int type;
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struct wireless_dev wdev;
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struct net_device *dev;
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struct ieee80211_local *local;
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int mc_count;
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unsigned int allmulti:1;
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unsigned int promisc:1;
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struct net_device_stats stats;
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int drop_unencrypted;
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int eapol; /* 0 = process EAPOL frames as normal data frames,
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* 1 = send EAPOL frames through wlan#ap to hostapd
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* (default) */
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int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
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* port */
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u16 sequence;
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/* Fragment table for host-based reassembly */
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struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
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unsigned int fragment_next;
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#define NUM_DEFAULT_KEYS 4
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struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
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struct ieee80211_key *default_key;
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struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
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union {
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struct ieee80211_if_ap ap;
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struct ieee80211_if_wds wds;
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struct ieee80211_if_vlan vlan;
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struct ieee80211_if_sta sta;
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} u;
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int channel_use;
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int channel_use_raw;
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#ifdef CONFIG_MAC80211_DEBUGFS
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struct dentry *debugfsdir;
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union {
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *eapol;
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struct dentry *ieee8021_x;
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struct dentry *state;
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struct dentry *bssid;
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struct dentry *prev_bssid;
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struct dentry *ssid_len;
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struct dentry *aid;
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struct dentry *ap_capab;
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struct dentry *capab;
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struct dentry *extra_ie_len;
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struct dentry *auth_tries;
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struct dentry *assoc_tries;
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struct dentry *auth_algs;
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struct dentry *auth_alg;
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struct dentry *auth_transaction;
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struct dentry *flags;
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} sta;
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *eapol;
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struct dentry *ieee8021_x;
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struct dentry *num_sta_ps;
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struct dentry *dtim_period;
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struct dentry *dtim_count;
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struct dentry *num_beacons;
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struct dentry *force_unicast_rateidx;
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struct dentry *max_ratectrl_rateidx;
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struct dentry *num_buffered_multicast;
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struct dentry *beacon_head_len;
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struct dentry *beacon_tail_len;
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} ap;
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *eapol;
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struct dentry *ieee8021_x;
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struct dentry *peer;
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} wds;
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struct {
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struct dentry *channel_use;
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struct dentry *drop_unencrypted;
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struct dentry *eapol;
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struct dentry *ieee8021_x;
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struct dentry *vlan_id;
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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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struct dentry *default_key;
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} debugfs;
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#endif
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};
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#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
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enum {
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IEEE80211_RX_MSG = 1,
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IEEE80211_TX_STATUS_MSG = 2,
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};
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struct ieee80211_local {
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/* embed the driver visible part.
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* don't cast (use the static inlines below), but we keep
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* it first anyway so they become a no-op */
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struct ieee80211_hw hw;
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const struct ieee80211_ops *ops;
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/* List of registered struct ieee80211_hw_mode */
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struct list_head modes_list;
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struct net_device *mdev; /* wmaster# - "master" 802.11 device */
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struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
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int open_count;
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int monitors;
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struct iw_statistics wstats;
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u8 wstats_flags;
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int tx_headroom; /* required headroom for hardware/radiotap */
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enum {
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IEEE80211_DEV_UNINITIALIZED = 0,
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IEEE80211_DEV_REGISTERED,
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IEEE80211_DEV_UNREGISTERED,
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} reg_state;
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/* Tasklet and skb queue to process calls from IRQ mode. All frames
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* added to skb_queue will be processed, but frames in
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* skb_queue_unreliable may be dropped if the total length of these
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* queues increases over the limit. */
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#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
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struct tasklet_struct tasklet;
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struct sk_buff_head skb_queue;
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struct sk_buff_head skb_queue_unreliable;
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/* Station data structures */
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spinlock_t sta_lock; /* mutex for STA data structures */
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int num_sta; /* number of stations in sta_list */
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struct list_head sta_list;
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struct list_head deleted_sta_list;
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struct sta_info *sta_hash[STA_HASH_SIZE];
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struct timer_list sta_cleanup;
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unsigned long state[NUM_TX_DATA_QUEUES];
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struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
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struct tasklet_struct tx_pending_tasklet;
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int mc_count; /* total count of multicast entries in all interfaces */
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int iff_allmultis, iff_promiscs;
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/* number of interfaces with corresponding IFF_ flags */
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struct rate_control_ref *rate_ctrl;
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int next_mode; /* MODE_IEEE80211*
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* The mode preference for next channel change. This is
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* used to select .11g vs. .11b channels (or 4.9 GHz vs.
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* .11a) when the channel number is not unique. */
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/* Supported and basic rate filters for different modes. These are
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* pointers to -1 terminated lists and rates in 100 kbps units. */
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int *supp_rates[NUM_IEEE80211_MODES];
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int *basic_rates[NUM_IEEE80211_MODES];
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int rts_threshold;
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int cts_protect_erp_frames;
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int fragmentation_threshold;
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int short_retry_limit; /* dot11ShortRetryLimit */
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int long_retry_limit; /* dot11LongRetryLimit */
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int short_preamble; /* use short preamble with IEEE 802.11b */
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struct crypto_blkcipher *wep_tx_tfm;
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struct crypto_blkcipher *wep_rx_tfm;
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u32 wep_iv;
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int key_tx_rx_threshold; /* number of times any key can be used in TX
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* or RX before generating a rekey
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* notification; 0 = notification disabled. */
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int bridge_packets; /* bridge packets between associated stations and
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* deliver multicast frames both back to wireless
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* media and to the local net stack */
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ieee80211_rx_handler *rx_pre_handlers;
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ieee80211_rx_handler *rx_handlers;
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ieee80211_tx_handler *tx_handlers;
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rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under
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* sta_bss_lock or sta_lock. */
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struct list_head sub_if_list;
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int sta_scanning;
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int scan_channel_idx;
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enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
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unsigned long last_scan_completed;
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struct delayed_work scan_work;
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struct net_device *scan_dev;
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struct ieee80211_channel *oper_channel, *scan_channel;
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struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode;
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u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
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size_t scan_ssid_len;
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struct list_head sta_bss_list;
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struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
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spinlock_t sta_bss_lock;
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#define IEEE80211_SCAN_MATCH_SSID BIT(0)
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#define IEEE80211_SCAN_WPA_ONLY BIT(1)
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#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
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int scan_flags;
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/* SNMP counters */
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/* dot11CountersTable */
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u32 dot11TransmittedFragmentCount;
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u32 dot11MulticastTransmittedFrameCount;
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u32 dot11FailedCount;
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u32 dot11RetryCount;
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u32 dot11MultipleRetryCount;
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u32 dot11FrameDuplicateCount;
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u32 dot11ReceivedFragmentCount;
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u32 dot11MulticastReceivedFrameCount;
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u32 dot11TransmittedFrameCount;
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u32 dot11WEPUndecryptableCount;
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#ifdef CONFIG_MAC80211_LEDS
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int tx_led_counter, rx_led_counter;
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struct led_trigger *tx_led, *rx_led;
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char tx_led_name[32], rx_led_name[32];
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#endif
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u32 channel_use;
|
|
u32 channel_use_raw;
|
|
u32 stat_time;
|
|
struct timer_list stat_timer;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct work_struct sta_debugfs_add;
|
|
#endif
|
|
|
|
enum {
|
|
STA_ANTENNA_SEL_AUTO = 0,
|
|
STA_ANTENNA_SEL_SW_CTRL = 1,
|
|
STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
|
|
} sta_antenna_sel;
|
|
|
|
int rate_ctrl_num_up, rate_ctrl_num_down;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
/* TX/RX handler statistics */
|
|
unsigned int tx_handlers_drop;
|
|
unsigned int tx_handlers_queued;
|
|
unsigned int tx_handlers_drop_unencrypted;
|
|
unsigned int tx_handlers_drop_fragment;
|
|
unsigned int tx_handlers_drop_wep;
|
|
unsigned int tx_handlers_drop_not_assoc;
|
|
unsigned int tx_handlers_drop_unauth_port;
|
|
unsigned int rx_handlers_drop;
|
|
unsigned int rx_handlers_queued;
|
|
unsigned int rx_handlers_drop_nullfunc;
|
|
unsigned int rx_handlers_drop_defrag;
|
|
unsigned int rx_handlers_drop_short;
|
|
unsigned int rx_handlers_drop_passive_scan;
|
|
unsigned int tx_expand_skb_head;
|
|
unsigned int tx_expand_skb_head_cloned;
|
|
unsigned int rx_expand_skb_head;
|
|
unsigned int rx_expand_skb_head2;
|
|
unsigned int rx_handlers_fragments;
|
|
unsigned int tx_status_drop;
|
|
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
|
|
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
|
|
#define I802_DEBUG_INC(c) (c)++
|
|
#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
#define I802_DEBUG_INC(c) do { } while (0)
|
|
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
|
|
|
|
|
|
int default_wep_only; /* only default WEP keys are used with this
|
|
* interface; this is used to decide when hwaccel
|
|
* can be used with default keys */
|
|
int total_ps_buffered; /* total number of all buffered unicast and
|
|
* multicast packets for power saving stations
|
|
*/
|
|
int allow_broadcast_always; /* whether to allow TX of broadcast frames
|
|
* even when there are no associated STAs
|
|
*/
|
|
|
|
int wifi_wme_noack_test;
|
|
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
|
|
|
|
unsigned int enabled_modes; /* bitfield of allowed modes;
|
|
* (1 << MODE_*) */
|
|
unsigned int hw_modes; /* bitfield of supported hardware modes;
|
|
* (1 << MODE_*) */
|
|
|
|
int user_space_mlme;
|
|
|
|
#ifdef CONFIG_MAC80211_DEBUGFS
|
|
struct local_debugfsdentries {
|
|
struct dentry *channel;
|
|
struct dentry *frequency;
|
|
struct dentry *radar_detect;
|
|
struct dentry *antenna_sel_tx;
|
|
struct dentry *antenna_sel_rx;
|
|
struct dentry *bridge_packets;
|
|
struct dentry *key_tx_rx_threshold;
|
|
struct dentry *rts_threshold;
|
|
struct dentry *fragmentation_threshold;
|
|
struct dentry *short_retry_limit;
|
|
struct dentry *long_retry_limit;
|
|
struct dentry *total_ps_buffered;
|
|
struct dentry *mode;
|
|
struct dentry *wep_iv;
|
|
struct dentry *tx_power_reduction;
|
|
struct dentry *modes;
|
|
struct dentry *statistics;
|
|
struct local_debugfsdentries_statsdentries {
|
|
struct dentry *transmitted_fragment_count;
|
|
struct dentry *multicast_transmitted_frame_count;
|
|
struct dentry *failed_count;
|
|
struct dentry *retry_count;
|
|
struct dentry *multiple_retry_count;
|
|
struct dentry *frame_duplicate_count;
|
|
struct dentry *received_fragment_count;
|
|
struct dentry *multicast_received_frame_count;
|
|
struct dentry *transmitted_frame_count;
|
|
struct dentry *wep_undecryptable_count;
|
|
struct dentry *num_scans;
|
|
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
|
|
struct dentry *tx_handlers_drop;
|
|
struct dentry *tx_handlers_queued;
|
|
struct dentry *tx_handlers_drop_unencrypted;
|
|
struct dentry *tx_handlers_drop_fragment;
|
|
struct dentry *tx_handlers_drop_wep;
|
|
struct dentry *tx_handlers_drop_not_assoc;
|
|
struct dentry *tx_handlers_drop_unauth_port;
|
|
struct dentry *rx_handlers_drop;
|
|
struct dentry *rx_handlers_queued;
|
|
struct dentry *rx_handlers_drop_nullfunc;
|
|
struct dentry *rx_handlers_drop_defrag;
|
|
struct dentry *rx_handlers_drop_short;
|
|
struct dentry *rx_handlers_drop_passive_scan;
|
|
struct dentry *tx_expand_skb_head;
|
|
struct dentry *tx_expand_skb_head_cloned;
|
|
struct dentry *rx_expand_skb_head;
|
|
struct dentry *rx_expand_skb_head2;
|
|
struct dentry *rx_handlers_fragments;
|
|
struct dentry *tx_status_drop;
|
|
struct dentry *wme_tx_queue;
|
|
struct dentry *wme_rx_queue;
|
|
#endif
|
|
struct dentry *dot11ACKFailureCount;
|
|
struct dentry *dot11RTSFailureCount;
|
|
struct dentry *dot11FCSErrorCount;
|
|
struct dentry *dot11RTSSuccessCount;
|
|
} stats;
|
|
struct dentry *stations;
|
|
struct dentry *keys;
|
|
} debugfs;
|
|
#endif
|
|
};
|
|
|
|
static inline struct ieee80211_local *hw_to_local(
|
|
struct ieee80211_hw *hw)
|
|
{
|
|
return container_of(hw, struct ieee80211_local, hw);
|
|
}
|
|
|
|
static inline struct ieee80211_hw *local_to_hw(
|
|
struct ieee80211_local *local)
|
|
{
|
|
return &local->hw;
|
|
}
|
|
|
|
enum ieee80211_link_state_t {
|
|
IEEE80211_LINK_STATE_XOFF = 0,
|
|
IEEE80211_LINK_STATE_PENDING,
|
|
};
|
|
|
|
struct sta_attribute {
|
|
struct attribute attr;
|
|
ssize_t (*show)(const struct sta_info *, char *buf);
|
|
ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
|
|
};
|
|
|
|
static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid)
|
|
{
|
|
/*
|
|
* This format has ben mandated by the IEEE specifications,
|
|
* so this line may not be changed to use the __set_bit() format.
|
|
*/
|
|
bss->tim[(aid)/8] |= 1<<((aid) % 8);
|
|
}
|
|
|
|
static inline void bss_tim_set(struct ieee80211_local *local,
|
|
struct ieee80211_if_ap *bss, int aid)
|
|
{
|
|
spin_lock_bh(&local->sta_lock);
|
|
__bss_tim_set(bss, aid);
|
|
spin_unlock_bh(&local->sta_lock);
|
|
}
|
|
|
|
static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
|
|
{
|
|
/*
|
|
* This format has ben mandated by the IEEE specifications,
|
|
* so this line may not be changed to use the __clear_bit() format.
|
|
*/
|
|
bss->tim[(aid)/8] &= !(1<<((aid) % 8));
|
|
}
|
|
|
|
static inline void bss_tim_clear(struct ieee80211_local *local,
|
|
struct ieee80211_if_ap *bss, int aid)
|
|
{
|
|
spin_lock_bh(&local->sta_lock);
|
|
__bss_tim_clear(bss, aid);
|
|
spin_unlock_bh(&local->sta_lock);
|
|
}
|
|
|
|
/**
|
|
* ieee80211_is_erp_rate - Check if a rate is an ERP rate
|
|
* @phymode: The PHY-mode for this rate (MODE_IEEE80211...)
|
|
* @rate: Transmission rate to check, in 100 kbps
|
|
*
|
|
* Check if a given rate is an Extended Rate PHY (ERP) rate.
|
|
*/
|
|
static inline int ieee80211_is_erp_rate(int phymode, int rate)
|
|
{
|
|
if (phymode == MODE_IEEE80211G) {
|
|
if (rate != 10 && rate != 20 &&
|
|
rate != 55 && rate != 110)
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ieee80211.c */
|
|
int ieee80211_hw_config(struct ieee80211_local *local);
|
|
int ieee80211_if_config(struct net_device *dev);
|
|
int ieee80211_if_config_beacon(struct net_device *dev);
|
|
struct ieee80211_key_conf *
|
|
ieee80211_key_data2conf(struct ieee80211_local *local,
|
|
const struct ieee80211_key *data);
|
|
struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
|
|
int idx, size_t key_len, gfp_t flags);
|
|
void ieee80211_key_free(struct ieee80211_key *key);
|
|
void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
|
|
struct ieee80211_rx_status *status, u32 msg_type);
|
|
void ieee80211_prepare_rates(struct ieee80211_local *local,
|
|
struct ieee80211_hw_mode *mode);
|
|
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
|
|
int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
|
|
void ieee80211_if_setup(struct net_device *dev);
|
|
void ieee80211_if_mgmt_setup(struct net_device *dev);
|
|
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
|
|
const char *name);
|
|
struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
|
|
|
|
/* ieee80211_ioctl.c */
|
|
extern const struct iw_handler_def ieee80211_iw_handler_def;
|
|
|
|
void ieee80211_update_default_wep_only(struct ieee80211_local *local);
|
|
|
|
|
|
/* Least common multiple of the used rates (in 100 kbps). This is used to
|
|
* calculate rate_inv values for each rate so that only integers are needed. */
|
|
#define CHAN_UTIL_RATE_LCM 95040
|
|
/* 1 usec is 1/8 * (95040/10) = 1188 */
|
|
#define CHAN_UTIL_PER_USEC 1188
|
|
/* Amount of bits to shift the result right to scale the total utilization
|
|
* to values that will not wrap around 32-bit integers. */
|
|
#define CHAN_UTIL_SHIFT 9
|
|
/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
|
|
* (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
|
|
* raw value with about 23 should give utilization in 10th of a percentage
|
|
* (1/1000). However, utilization is only estimated and not all intervals
|
|
* between frames etc. are calculated. 18 seems to give numbers that are closer
|
|
* to the real maximum. */
|
|
#define CHAN_UTIL_PER_10MS 18
|
|
#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
|
|
#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
|
|
|
|
|
|
/* ieee80211_ioctl.c */
|
|
int ieee80211_set_compression(struct ieee80211_local *local,
|
|
struct net_device *dev, struct sta_info *sta);
|
|
int ieee80211_init_client(struct net_device *dev);
|
|
int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq);
|
|
/* ieee80211_sta.c */
|
|
void ieee80211_sta_timer(unsigned long data);
|
|
void ieee80211_sta_work(struct work_struct *work);
|
|
void ieee80211_sta_scan_work(struct work_struct *work);
|
|
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
|
|
struct ieee80211_rx_status *rx_status);
|
|
int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
|
|
int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
|
|
int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
|
|
int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
|
|
void ieee80211_sta_req_auth(struct net_device *dev,
|
|
struct ieee80211_if_sta *ifsta);
|
|
int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
|
|
void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
|
|
struct ieee80211_rx_status *rx_status);
|
|
void ieee80211_rx_bss_list_init(struct net_device *dev);
|
|
void ieee80211_rx_bss_list_deinit(struct net_device *dev);
|
|
int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
|
|
struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
|
|
struct sk_buff *skb, u8 *bssid,
|
|
u8 *addr);
|
|
int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
|
|
int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
|
|
|
|
/* ieee80211_iface.c */
|
|
int ieee80211_if_add(struct net_device *dev, const char *name,
|
|
struct net_device **new_dev, int type);
|
|
void ieee80211_if_set_type(struct net_device *dev, int type);
|
|
void ieee80211_if_reinit(struct net_device *dev);
|
|
void __ieee80211_if_del(struct ieee80211_local *local,
|
|
struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
|
|
void ieee80211_if_free(struct net_device *dev);
|
|
void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
|
|
int ieee80211_if_add_mgmt(struct ieee80211_local *local);
|
|
void ieee80211_if_del_mgmt(struct ieee80211_local *local);
|
|
|
|
/* for wiphy privid */
|
|
extern void *mac80211_wiphy_privid;
|
|
|
|
#endif /* IEEE80211_I_H */
|