ieee80211_i.h
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00001 /*
00002  * Copyright 2002-2005, Instant802 Networks, Inc.
00003  * Copyright 2005, Devicescape Software, Inc.
00004  * Copyright 2006-2007  Jiri Benc <jbenc@suse.cz>
00005  * Copyright 2007-2010  Johannes Berg <johannes@sipsolutions.net>
00006  *
00007  * This program is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License version 2 as
00009  * published by the Free Software Foundation.
00010  */
00011 
00012 #ifndef IEEE80211_I_H
00013 #define IEEE80211_I_H
00014 
00015 #include <linux/kernel.h>
00016 #include <linux/device.h>
00017 #include <linux/if_ether.h>
00018 #include <linux/interrupt.h>
00019 #include <linux/list.h>
00020 #include <linux/netdevice.h>
00021 #include <linux/skbuff.h>
00022 #include <linux/workqueue.h>
00023 #include <linux/types.h>
00024 #include <linux/spinlock.h>
00025 #include <linux/etherdevice.h>
00026 #include <linux/leds.h>
00027 #include <net/ieee80211_radiotap.h>
00028 #include <net/cfg80211.h>
00029 #include <net/mac80211.h>
00030 #include "key.h"
00031 #include "sta_info.h"
00032 
00033 struct ieee80211_local;
00034 
00035 /* Maximum number of broadcast/multicast frames to buffer when some of the
00036  * associated stations are using power saving. */
00037 #define AP_MAX_BC_BUFFER 128
00038 
00039 /* Maximum number of frames buffered to all STAs, including multicast frames.
00040  * Note: increasing this limit increases the potential memory requirement. Each
00041  * frame can be up to about 2 kB long. */
00042 #define TOTAL_MAX_TX_BUFFER 512
00043 
00044 /* Required encryption head and tailroom */
00045 #define IEEE80211_ENCRYPT_HEADROOM 8
00046 #define IEEE80211_ENCRYPT_TAILROOM 18
00047 
00048 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
00049  * reception of at least three fragmented frames. This limit can be increased
00050  * by changing this define, at the cost of slower frame reassembly and
00051  * increased memory use (about 2 kB of RAM per entry). */
00052 #define IEEE80211_FRAGMENT_MAX 4
00053 
00054 #define TU_TO_EXP_TIME(x)       (jiffies + usecs_to_jiffies((x) * 1024))
00055 
00056 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
00057         (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK |   \
00058          IEEE80211_WMM_IE_STA_QOSINFO_AC_BE |   \
00059          IEEE80211_WMM_IE_STA_QOSINFO_AC_VI |   \
00060          IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
00061 
00062 #define IEEE80211_DEFAULT_MAX_SP_LEN            \
00063         IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
00064 
00065 struct ieee80211_fragment_entry {
00066         unsigned long first_frag_time;
00067         unsigned int seq;
00068         unsigned int rx_queue;
00069         unsigned int last_frag;
00070         unsigned int extra_len;
00071         struct sk_buff_head skb_list;
00072         int ccmp; /* Whether fragments were encrypted with CCMP */
00073         u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
00074 };
00075 
00076 
00077 struct ieee80211_bss {
00078         /* don't want to look up all the time */
00079         size_t ssid_len;
00080         u8 ssid[IEEE80211_MAX_SSID_LEN];
00081 
00082         u8 dtim_period;
00083 
00084         bool wmm_used;
00085         bool uapsd_supported;
00086 
00087         unsigned long last_probe_resp;
00088 
00089 #ifdef CONFIG_MAC80211_MESH
00090         u8 *mesh_id;
00091         size_t mesh_id_len;
00092         u8 *mesh_cfg;
00093 #endif
00094 
00095 #define IEEE80211_MAX_SUPP_RATES 32
00096         u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
00097         size_t supp_rates_len;
00098 
00099         /*
00100          * During association, we save an ERP value from a probe response so
00101          * that we can feed ERP info to the driver when handling the
00102          * association completes. these fields probably won't be up-to-date
00103          * otherwise, you probably don't want to use them.
00104          */
00105         bool has_erp_value;
00106         u8 erp_value;
00107 };
00108 
00109 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
00110 {
00111 #ifdef CONFIG_MAC80211_MESH
00112         return bss->mesh_cfg;
00113 #endif
00114         return NULL;
00115 }
00116 
00117 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
00118 {
00119 #ifdef CONFIG_MAC80211_MESH
00120         return bss->mesh_id;
00121 #endif
00122         return NULL;
00123 }
00124 
00125 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
00126 {
00127 #ifdef CONFIG_MAC80211_MESH
00128         return bss->mesh_id_len;
00129 #endif
00130         return 0;
00131 }
00132 
00133 
00134 typedef unsigned __bitwise__ ieee80211_tx_result;
00135 #define TX_CONTINUE     ((__force ieee80211_tx_result) 0u)
00136 #define TX_DROP         ((__force ieee80211_tx_result) 1u)
00137 #define TX_QUEUED       ((__force ieee80211_tx_result) 2u)
00138 
00139 #define IEEE80211_TX_UNICAST            BIT(1)
00140 #define IEEE80211_TX_PS_BUFFERED        BIT(2)
00141 
00142 struct ieee80211_tx_data {
00143         struct sk_buff *skb;
00144         struct ieee80211_local *local;
00145         struct ieee80211_sub_if_data *sdata;
00146         struct sta_info *sta;
00147         struct ieee80211_key *key;
00148 
00149         struct ieee80211_channel *channel;
00150 
00151         unsigned int flags;
00152 };
00153 
00154 
00155 typedef unsigned __bitwise__ ieee80211_rx_result;
00156 #define RX_CONTINUE             ((__force ieee80211_rx_result) 0u)
00157 #define RX_DROP_UNUSABLE        ((__force ieee80211_rx_result) 1u)
00158 #define RX_DROP_MONITOR         ((__force ieee80211_rx_result) 2u)
00159 #define RX_QUEUED               ((__force ieee80211_rx_result) 3u)
00160 
00174 enum ieee80211_packet_rx_flags {
00175         IEEE80211_RX_IN_SCAN                    = BIT(0),
00176         IEEE80211_RX_RA_MATCH                   = BIT(1),
00177         IEEE80211_RX_FRAGMENTED                 = BIT(2),
00178         IEEE80211_RX_AMSDU                      = BIT(3),
00179         IEEE80211_RX_MALFORMED_ACTION_FRM       = BIT(4),
00180         IEEE80211_RX_DEFERRED_RELEASE           = BIT(5),
00181 };
00182 
00191 enum ieee80211_rx_flags {
00192         IEEE80211_RX_CMNTR              = BIT(0),
00193 };
00194 
00195 struct ieee80211_rx_data {
00196         struct sk_buff *skb;
00197         struct ieee80211_local *local;
00198         struct ieee80211_sub_if_data *sdata;
00199         struct sta_info *sta;
00200         struct ieee80211_key *key;
00201 
00202         unsigned int flags;
00203 
00204         /*
00205          * Index into sequence numbers array, 0..16
00206          * since the last (16) is used for non-QoS,
00207          * will be 16 on non-QoS frames.
00208          */
00209         int seqno_idx;
00210 
00211         /*
00212          * Index into the security IV/PN arrays, 0..16
00213          * since the last (16) is used for CCMP-encrypted
00214          * management frames, will be set to 16 on mgmt
00215          * frames and 0 on non-QoS frames.
00216          */
00217         int security_idx;
00218 
00219         u32 tkip_iv32;
00220         u16 tkip_iv16;
00221 };
00222 
00223 struct beacon_data {
00224         u8 *head, *tail;
00225         int head_len, tail_len;
00226         int dtim_period;
00227 };
00228 
00229 struct ieee80211_if_ap {
00230         struct beacon_data __rcu *beacon;
00231 
00232         struct list_head vlans;
00233 
00234         /* yes, this looks ugly, but guarantees that we can later use
00235          * bitmap_empty :)
00236          * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
00237         u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
00238         struct sk_buff_head ps_bc_buf;
00239         atomic_t num_sta_ps; /* number of stations in PS mode */
00240         int dtim_count;
00241         bool dtim_bc_mc;
00242 };
00243 
00244 struct ieee80211_if_wds {
00245         struct sta_info *sta;
00246         u8 remote_addr[ETH_ALEN];
00247 };
00248 
00249 struct ieee80211_if_vlan {
00250         struct list_head list;
00251 
00252         /* used for all tx if the VLAN is configured to 4-addr mode */
00253         struct sta_info __rcu *sta;
00254 };
00255 
00256 struct mesh_stats {
00257         __u32 fwded_mcast;              /* Mesh forwarded multicast frames */
00258         __u32 fwded_unicast;            /* Mesh forwarded unicast frames */
00259         __u32 fwded_frames;             /* Mesh total forwarded frames */
00260         __u32 dropped_frames_ttl;       /* Not transmitted since mesh_ttl == 0*/
00261         __u32 dropped_frames_no_route;  /* Not transmitted, no route found */
00262         __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
00263         atomic_t estab_plinks;
00264 };
00265 
00266 #define PREQ_Q_F_START          0x1
00267 #define PREQ_Q_F_REFRESH        0x2
00268 struct mesh_preq_queue {
00269         struct list_head list;
00270         u8 dst[ETH_ALEN];
00271         u8 flags;
00272 };
00273 
00274 enum ieee80211_work_type {
00275         IEEE80211_WORK_ABORT,
00276         IEEE80211_WORK_DIRECT_PROBE,
00277         IEEE80211_WORK_AUTH,
00278         IEEE80211_WORK_ASSOC_BEACON_WAIT,
00279         IEEE80211_WORK_ASSOC,
00280         IEEE80211_WORK_REMAIN_ON_CHANNEL,
00281         IEEE80211_WORK_OFFCHANNEL_TX,
00282 };
00283 
00291 enum work_done_result {
00292         WORK_DONE_DESTROY,
00293         WORK_DONE_REQUEUE,
00294 };
00295 
00296 struct ieee80211_work {
00297         struct list_head list;
00298 
00299         struct rcu_head rcu_head;
00300 
00301         struct ieee80211_sub_if_data *sdata;
00302 
00303         enum work_done_result (*done)(struct ieee80211_work *wk,
00304                                       struct sk_buff *skb);
00305 
00306         struct ieee80211_channel *chan;
00307         enum nl80211_channel_type chan_type;
00308 
00309         unsigned long timeout;
00310         enum ieee80211_work_type type;
00311 
00312         u8 filter_ta[ETH_ALEN];
00313 
00314         bool started;
00315 
00316         union {
00317                 struct {
00318                         int tries;
00319                         u16 algorithm, transaction;
00320                         u8 ssid[IEEE80211_MAX_SSID_LEN];
00321                         u8 ssid_len;
00322                         u8 key[WLAN_KEY_LEN_WEP104];
00323                         u8 key_len, key_idx;
00324                         bool privacy;
00325                         bool synced;
00326                 } probe_auth;
00327                 struct {
00328                         struct cfg80211_bss *bss;
00329                         const u8 *supp_rates;
00330                         const u8 *ht_information_ie;
00331                         enum ieee80211_smps_mode smps;
00332                         int tries;
00333                         u16 capability;
00334                         u8 prev_bssid[ETH_ALEN];
00335                         u8 ssid[IEEE80211_MAX_SSID_LEN];
00336                         u8 ssid_len;
00337                         u8 supp_rates_len;
00338                         bool wmm_used, use_11n, uapsd_used;
00339                         bool synced;
00340                 } assoc;
00341                 struct {
00342                         u32 duration;
00343                 } remain;
00344                 struct {
00345                         struct sk_buff *frame;
00346                         u32 wait;
00347                         bool status;
00348                 } offchan_tx;
00349         };
00350 
00351         int ie_len;
00352         /* must be last */
00353         u8 ie[0];
00354 };
00355 
00356 /* flags used in struct ieee80211_if_managed.flags */
00357 enum ieee80211_sta_flags {
00358         IEEE80211_STA_BEACON_POLL       = BIT(0),
00359         IEEE80211_STA_CONNECTION_POLL   = BIT(1),
00360         IEEE80211_STA_CONTROL_PORT      = BIT(2),
00361         IEEE80211_STA_DISABLE_11N       = BIT(4),
00362         IEEE80211_STA_CSA_RECEIVED      = BIT(5),
00363         IEEE80211_STA_MFP_ENABLED       = BIT(6),
00364         IEEE80211_STA_UAPSD_ENABLED     = BIT(7),
00365         IEEE80211_STA_NULLFUNC_ACKED    = BIT(8),
00366         IEEE80211_STA_RESET_SIGNAL_AVE  = BIT(9),
00367 };
00368 
00369 struct ieee80211_if_managed {
00370         struct timer_list timer;
00371         struct timer_list conn_mon_timer;
00372         struct timer_list bcn_mon_timer;
00373         struct timer_list chswitch_timer;
00374         struct work_struct monitor_work;
00375         struct work_struct chswitch_work;
00376         struct work_struct beacon_connection_loss_work;
00377 
00378         unsigned long beacon_timeout;
00379         unsigned long probe_timeout;
00380         int probe_send_count;
00381         bool nullfunc_failed;
00382 
00383         struct mutex mtx;
00384         struct cfg80211_bss *associated;
00385 
00386         u8 bssid[ETH_ALEN];
00387 
00388         u16 aid;
00389 
00390         unsigned long timers_running; /* used for quiesce/restart */
00391         bool powersave; /* powersave requested for this iface */
00392         bool broken_ap; /* AP is broken -- turn off powersave */
00393         enum ieee80211_smps_mode req_smps, /* requested smps mode */
00394                                  ap_smps, /* smps mode AP thinks we're in */
00395                                  driver_smps_mode; /* smps mode request */
00396 
00397         struct work_struct request_smps_work;
00398 
00399         unsigned int flags;
00400 
00401         bool beacon_crc_valid;
00402         u32 beacon_crc;
00403 
00404         enum {
00405                 IEEE80211_MFP_DISABLED,
00406                 IEEE80211_MFP_OPTIONAL,
00407                 IEEE80211_MFP_REQUIRED
00408         } mfp; /* management frame protection */
00409 
00410         int wmm_last_param_set;
00411 
00412         u8 use_4addr;
00413 
00414         /* Signal strength from the last Beacon frame in the current BSS. */
00415         int last_beacon_signal;
00416 
00417         /*
00418          * Weighted average of the signal strength from Beacon frames in the
00419          * current BSS. This is in units of 1/16 of the signal unit to maintain
00420          * accuracy and to speed up calculations, i.e., the value need to be
00421          * divided by 16 to get the actual value.
00422          */
00423         int ave_beacon_signal;
00424 
00425         /*
00426          * Number of Beacon frames used in ave_beacon_signal. This can be used
00427          * to avoid generating less reliable cqm events that would be based
00428          * only on couple of received frames.
00429          */
00430         unsigned int count_beacon_signal;
00431 
00432         /*
00433          * Last Beacon frame signal strength average (ave_beacon_signal / 16)
00434          * that triggered a cqm event. 0 indicates that no event has been
00435          * generated for the current association.
00436          */
00437         int last_cqm_event_signal;
00438 
00439         /*
00440          * State variables for keeping track of RSSI of the AP currently
00441          * connected to and informing driver when RSSI has gone
00442          * below/above a certain threshold.
00443          */
00444         int rssi_min_thold, rssi_max_thold;
00445         int last_ave_beacon_signal;
00446 };
00447 
00448 struct ieee80211_if_ibss {
00449         struct timer_list timer;
00450 
00451         struct mutex mtx;
00452 
00453         unsigned long last_scan_completed;
00454 
00455         u32 basic_rates;
00456 
00457         bool timer_running;
00458 
00459         bool fixed_bssid;
00460         bool fixed_channel;
00461         bool privacy;
00462 
00463         u8 bssid[ETH_ALEN];
00464         u8 ssid[IEEE80211_MAX_SSID_LEN];
00465         u8 ssid_len, ie_len;
00466         u8 *ie;
00467         struct ieee80211_channel *channel;
00468 
00469         unsigned long ibss_join_req;
00470         /* probe response/beacon for IBSS */
00471         struct sk_buff __rcu *presp;
00472         struct sk_buff *skb;
00473 
00474         enum {
00475                 IEEE80211_IBSS_MLME_SEARCH,
00476                 IEEE80211_IBSS_MLME_JOINED,
00477         } state;
00478 };
00479 
00480 struct ieee80211_if_mesh {
00481         struct timer_list housekeeping_timer;
00482         struct timer_list mesh_path_timer;
00483         struct timer_list mesh_path_root_timer;
00484 
00485         unsigned long timers_running;
00486 
00487         unsigned long wrkq_flags;
00488 
00489         u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
00490         size_t mesh_id_len;
00491         /* Active Path Selection Protocol Identifier */
00492         u8 mesh_pp_id;
00493         /* Active Path Selection Metric Identifier */
00494         u8 mesh_pm_id;
00495         /* Congestion Control Mode Identifier */
00496         u8 mesh_cc_id;
00497         /* Synchronization Protocol Identifier */
00498         u8 mesh_sp_id;
00499         /* Authentication Protocol Identifier */
00500         u8 mesh_auth_id;
00501         /* Local mesh Sequence Number */
00502         u32 sn;
00503         /* Last used PREQ ID */
00504         u32 preq_id;
00505         atomic_t mpaths;
00506         /* Timestamp of last SN update */
00507         unsigned long last_sn_update;
00508         /* Timestamp of last SN sent */
00509         unsigned long last_preq;
00510         struct mesh_rmc *rmc;
00511         spinlock_t mesh_preq_queue_lock;
00512         struct mesh_preq_queue preq_queue;
00513         int preq_queue_len;
00514         struct mesh_stats mshstats;
00515         struct mesh_config mshcfg;
00516         u32 mesh_seqnum;
00517         bool accepting_plinks;
00518         int num_gates;
00519         const u8 *ie;
00520         u8 ie_len;
00521         enum {
00522                 IEEE80211_MESH_SEC_NONE = 0x0,
00523                 IEEE80211_MESH_SEC_AUTHED = 0x1,
00524                 IEEE80211_MESH_SEC_SECURED = 0x2,
00525         } security;
00526 };
00527 
00528 #ifdef CONFIG_MAC80211_MESH
00529 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
00530         do { (msh)->mshstats.name++; } while (0)
00531 #else
00532 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
00533         do { } while (0)
00534 #endif
00535 
00547 enum ieee80211_sub_if_data_flags {
00548         IEEE80211_SDATA_ALLMULTI                = BIT(0),
00549         IEEE80211_SDATA_PROMISC                 = BIT(1),
00550         IEEE80211_SDATA_OPERATING_GMODE         = BIT(2),
00551         IEEE80211_SDATA_DONT_BRIDGE_PACKETS     = BIT(3),
00552         IEEE80211_SDATA_DISCONNECT_RESUME       = BIT(4),
00553 };
00554 
00563 enum ieee80211_sdata_state_bits {
00564         SDATA_STATE_RUNNING,
00565         SDATA_STATE_OFFCHANNEL,
00566 };
00567 
00568 struct ieee80211_sub_if_data {
00569         struct list_head list;
00570 
00571         struct wireless_dev wdev;
00572 
00573         /* keys */
00574         struct list_head key_list;
00575 
00576         /* count for keys needing tailroom space allocation */
00577         int crypto_tx_tailroom_needed_cnt;
00578 
00579         struct net_device *dev;
00580         struct ieee80211_local *local;
00581 
00582         unsigned int flags;
00583 
00584         unsigned long state;
00585 
00586         int drop_unencrypted;
00587 
00588         char name[IFNAMSIZ];
00589 
00590         /*
00591          * keep track of whether the HT opmode (stored in
00592          * vif.bss_info.ht_operation_mode) is valid.
00593          */
00594         bool ht_opmode_valid;
00595 
00596         /* to detect idle changes */
00597         bool old_idle;
00598 
00599         /* Fragment table for host-based reassembly */
00600         struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
00601         unsigned int fragment_next;
00602 
00603         struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
00604         struct ieee80211_key __rcu *default_unicast_key;
00605         struct ieee80211_key __rcu *default_multicast_key;
00606         struct ieee80211_key __rcu *default_mgmt_key;
00607 
00608         u16 sequence_number;
00609         __be16 control_port_protocol;
00610         bool control_port_no_encrypt;
00611 
00612         struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
00613 
00614         struct work_struct work;
00615         struct sk_buff_head skb_queue;
00616 
00617         bool arp_filter_state;
00618 
00619         /*
00620          * AP this belongs to: self in AP mode and
00621          * corresponding AP in VLAN mode, NULL for
00622          * all others (might be needed later in IBSS)
00623          */
00624         struct ieee80211_if_ap *bss;
00625 
00626         /* bitmap of allowed (non-MCS) rate indexes for rate control */
00627         u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
00628 
00629         union {
00630                 struct ieee80211_if_ap ap;
00631                 struct ieee80211_if_wds wds;
00632                 struct ieee80211_if_vlan vlan;
00633                 struct ieee80211_if_managed mgd;
00634                 struct ieee80211_if_ibss ibss;
00635                 struct ieee80211_if_mesh mesh;
00636                 u32 mntr_flags;
00637         } u;
00638 
00639 #ifdef CONFIG_MAC80211_DEBUGFS
00640         struct {
00641                 struct dentry *dir;
00642                 struct dentry *subdir_stations;
00643                 struct dentry *default_unicast_key;
00644                 struct dentry *default_multicast_key;
00645                 struct dentry *default_mgmt_key;
00646         } debugfs;
00647 #endif
00648         /* must be last, dynamically sized area in this! */
00649         struct ieee80211_vif vif;
00650 };
00651 
00652 static inline
00653 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
00654 {
00655         return container_of(p, struct ieee80211_sub_if_data, vif);
00656 }
00657 
00658 enum sdata_queue_type {
00659         IEEE80211_SDATA_QUEUE_TYPE_FRAME        = 0,
00660         IEEE80211_SDATA_QUEUE_AGG_START         = 1,
00661         IEEE80211_SDATA_QUEUE_AGG_STOP          = 2,
00662 };
00663 
00664 enum {
00665         IEEE80211_RX_MSG        = 1,
00666         IEEE80211_TX_STATUS_MSG = 2,
00667         IEEE80211_EOSP_MSG      = 3,
00668 };
00669 
00670 struct skb_eosp_msg_data {
00671         u8 sta[ETH_ALEN], iface[ETH_ALEN];
00672 };
00673 
00674 enum queue_stop_reason {
00675         IEEE80211_QUEUE_STOP_REASON_DRIVER,
00676         IEEE80211_QUEUE_STOP_REASON_PS,
00677         IEEE80211_QUEUE_STOP_REASON_CSA,
00678         IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
00679         IEEE80211_QUEUE_STOP_REASON_SUSPEND,
00680         IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
00681         IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
00682 };
00683 
00684 #ifdef CONFIG_MAC80211_LEDS
00685 struct tpt_led_trigger {
00686         struct led_trigger trig;
00687         char name[32];
00688         const struct ieee80211_tpt_blink *blink_table;
00689         unsigned int blink_table_len;
00690         struct timer_list timer;
00691         unsigned long prev_traffic;
00692         unsigned long tx_bytes, rx_bytes;
00693         unsigned int active, want;
00694         bool running;
00695 };
00696 #endif
00697 
00712 enum {
00713         SCAN_SW_SCANNING,
00714         SCAN_HW_SCANNING,
00715         SCAN_OFF_CHANNEL,
00716         SCAN_COMPLETED,
00717         SCAN_ABORTED,
00718 };
00719 
00733 enum mac80211_scan_state {
00734         SCAN_DECISION,
00735         SCAN_SET_CHANNEL,
00736         SCAN_SEND_PROBE,
00737         SCAN_LEAVE_OPER_CHANNEL,
00738         SCAN_ENTER_OPER_CHANNEL,
00739 };
00740 
00741 struct ieee80211_local {
00742         /* embed the driver visible part.
00743          * don't cast (use the static inlines below), but we keep
00744          * it first anyway so they become a no-op */
00745         struct ieee80211_hw hw;
00746 
00747         const struct ieee80211_ops *ops;
00748 
00749         /*
00750          * work stuff, potentially off-channel (in the future)
00751          */
00752         struct list_head work_list;
00753         struct timer_list work_timer;
00754         struct work_struct work_work;
00755         struct sk_buff_head work_skb_queue;
00756 
00757         /*
00758          * private workqueue to mac80211. mac80211 makes this accessible
00759          * via ieee80211_queue_work()
00760          */
00761         struct workqueue_struct *workqueue;
00762 
00763         unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
00764         /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
00765         spinlock_t queue_stop_reason_lock;
00766 
00767         int open_count;
00768         int monitors, cooked_mntrs;
00769         /* number of interfaces with corresponding FIF_ flags */
00770         int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
00771             fif_probe_req;
00772         int probe_req_reg;
00773         unsigned int filter_flags; /* FIF_* */
00774 
00775         bool wiphy_ciphers_allocated;
00776 
00777         /* protects the aggregated multicast list and filter calls */
00778         spinlock_t filter_lock;
00779 
00780         /* used for uploading changed mc list */
00781         struct work_struct reconfig_filter;
00782 
00783         /* used to reconfigure hardware SM PS */
00784         struct work_struct recalc_smps;
00785 
00786         /* aggregated multicast list */
00787         struct netdev_hw_addr_list mc_list;
00788 
00789         bool tim_in_locked_section; /* see ieee80211_beacon_get() */
00790 
00791         /*
00792          * suspended is true if we finished all the suspend _and_ we have
00793          * not yet come up from resume. This is to be used by mac80211
00794          * to ensure driver sanity during suspend and mac80211's own
00795          * sanity. It can eventually be used for WoW as well.
00796          */
00797         bool suspended;
00798 
00799         /*
00800          * Resuming is true while suspended, but when we're reprogramming the
00801          * hardware -- at that time it's allowed to use ieee80211_queue_work()
00802          * again even though some other parts of the stack are still suspended
00803          * and we still drop received frames to avoid waking the stack.
00804          */
00805         bool resuming;
00806 
00807         /*
00808          * quiescing is true during the suspend process _only_ to
00809          * ease timer cancelling etc.
00810          */
00811         bool quiescing;
00812 
00813         /* device is started */
00814         bool started;
00815 
00816         /* wowlan is enabled -- don't reconfig on resume */
00817         bool wowlan;
00818 
00819         int tx_headroom; /* required headroom for hardware/radiotap */
00820 
00821         /* Tasklet and skb queue to process calls from IRQ mode. All frames
00822          * added to skb_queue will be processed, but frames in
00823          * skb_queue_unreliable may be dropped if the total length of these
00824          * queues increases over the limit. */
00825 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
00826         struct tasklet_struct tasklet;
00827         struct sk_buff_head skb_queue;
00828         struct sk_buff_head skb_queue_unreliable;
00829 
00830         /*
00831          * Internal FIFO queue which is shared between multiple rx path
00832          * stages. Its main task is to provide a serialization mechanism,
00833          * so all rx handlers can enjoy having exclusive access to their
00834          * private data structures.
00835          */
00836         struct sk_buff_head rx_skb_queue;
00837         bool running_rx_handler;        /* protected by rx_skb_queue.lock */
00838 
00839         /* Station data */
00840         /*
00841          * The mutex only protects the list and counter,
00842          * reads are done in RCU.
00843          * Additionally, the lock protects the hash table,
00844          * the pending list and each BSS's TIM bitmap.
00845          */
00846         struct mutex sta_mtx;
00847         spinlock_t sta_lock;
00848         unsigned long num_sta;
00849         struct list_head sta_list, sta_pending_list;
00850         struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
00851         struct timer_list sta_cleanup;
00852         struct work_struct sta_finish_work;
00853         int sta_generation;
00854 
00855         struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
00856         struct tasklet_struct tx_pending_tasklet;
00857 
00858         atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
00859 
00860         /* number of interfaces with corresponding IFF_ flags */
00861         atomic_t iff_allmultis, iff_promiscs;
00862 
00863         struct rate_control_ref *rate_ctrl;
00864 
00865         struct crypto_cipher *wep_tx_tfm;
00866         struct crypto_cipher *wep_rx_tfm;
00867         u32 wep_iv;
00868 
00869         /* see iface.c */
00870         struct list_head interfaces;
00871         struct mutex iflist_mtx;
00872 
00873         /*
00874          * Key mutex, protects sdata's key_list and sta_info's
00875          * key pointers (write access, they're RCU.)
00876          */
00877         struct mutex key_mtx;
00878 
00879         /* mutex for scan and work locking */
00880         struct mutex mtx;
00881 
00882         /* Scanning and BSS list */
00883         unsigned long scanning;
00884         struct cfg80211_ssid scan_ssid;
00885         struct cfg80211_scan_request *int_scan_req;
00886         struct cfg80211_scan_request *scan_req, *hw_scan_req;
00887         struct ieee80211_channel *scan_channel;
00888         enum ieee80211_band hw_scan_band;
00889         int scan_channel_idx;
00890         int scan_ies_len;
00891 
00892         bool sched_scanning;
00893         struct ieee80211_sched_scan_ies sched_scan_ies;
00894         struct work_struct sched_scan_stopped_work;
00895 
00896         unsigned long leave_oper_channel_time;
00897         enum mac80211_scan_state next_scan_state;
00898         struct delayed_work scan_work;
00899         struct ieee80211_sub_if_data *scan_sdata;
00900         enum nl80211_channel_type _oper_channel_type;
00901         struct ieee80211_channel *oper_channel, *csa_channel;
00902 
00903         /* Temporary remain-on-channel for off-channel operations */
00904         struct ieee80211_channel *tmp_channel;
00905         enum nl80211_channel_type tmp_channel_type;
00906 
00907         /* SNMP counters */
00908         /* dot11CountersTable */
00909         u32 dot11TransmittedFragmentCount;
00910         u32 dot11MulticastTransmittedFrameCount;
00911         u32 dot11FailedCount;
00912         u32 dot11RetryCount;
00913         u32 dot11MultipleRetryCount;
00914         u32 dot11FrameDuplicateCount;
00915         u32 dot11ReceivedFragmentCount;
00916         u32 dot11MulticastReceivedFrameCount;
00917         u32 dot11TransmittedFrameCount;
00918 
00919 #ifdef CONFIG_MAC80211_LEDS
00920         int tx_led_counter, rx_led_counter;
00921         struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
00922         struct tpt_led_trigger *tpt_led_trigger;
00923         char tx_led_name[32], rx_led_name[32],
00924              assoc_led_name[32], radio_led_name[32];
00925 #endif
00926 
00927 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
00928         /* TX/RX handler statistics */
00929         unsigned int tx_handlers_drop;
00930         unsigned int tx_handlers_queued;
00931         unsigned int tx_handlers_drop_unencrypted;
00932         unsigned int tx_handlers_drop_fragment;
00933         unsigned int tx_handlers_drop_wep;
00934         unsigned int tx_handlers_drop_not_assoc;
00935         unsigned int tx_handlers_drop_unauth_port;
00936         unsigned int rx_handlers_drop;
00937         unsigned int rx_handlers_queued;
00938         unsigned int rx_handlers_drop_nullfunc;
00939         unsigned int rx_handlers_drop_defrag;
00940         unsigned int rx_handlers_drop_short;
00941         unsigned int rx_handlers_drop_passive_scan;
00942         unsigned int tx_expand_skb_head;
00943         unsigned int tx_expand_skb_head_cloned;
00944         unsigned int rx_expand_skb_head;
00945         unsigned int rx_expand_skb_head2;
00946         unsigned int rx_handlers_fragments;
00947         unsigned int tx_status_drop;
00948 #define I802_DEBUG_INC(c) (c)++
00949 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
00950 #define I802_DEBUG_INC(c) do { } while (0)
00951 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
00952 
00953 
00954         int total_ps_buffered; /* total number of all buffered unicast and
00955                                 * multicast packets for power saving stations
00956                                 */
00957         int wifi_wme_noack_test;
00958         unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
00959 
00960         /*
00961          * Bitmask of enabled u-apsd queues,
00962          * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
00963          * to take effect.
00964          */
00965         unsigned int uapsd_queues;
00966 
00967         /*
00968          * Maximum number of buffered frames AP can deliver during a
00969          * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
00970          * Needs a new association to take effect.
00971          */
00972         unsigned int uapsd_max_sp_len;
00973 
00974         bool pspolling;
00975         bool offchannel_ps_enabled;
00976         /*
00977          * PS can only be enabled when we have exactly one managed
00978          * interface (and monitors) in PS, this then points there.
00979          */
00980         struct ieee80211_sub_if_data *ps_sdata;
00981         struct work_struct dynamic_ps_enable_work;
00982         struct work_struct dynamic_ps_disable_work;
00983         struct timer_list dynamic_ps_timer;
00984         struct notifier_block network_latency_notifier;
00985         struct notifier_block ifa_notifier;
00986 
00987         /*
00988          * The dynamic ps timeout configured from user space via WEXT -
00989          * this will override whatever chosen by mac80211 internally.
00990          */
00991         int dynamic_ps_forced_timeout;
00992         int dynamic_ps_user_timeout;
00993         bool disable_dynamic_ps;
00994 
00995         int user_power_level; /* in dBm */
00996         int power_constr_level; /* in dBm */
00997 
00998         enum ieee80211_smps_mode smps_mode;
00999 
01000         struct work_struct restart_work;
01001 
01002 #ifdef CONFIG_MAC80211_DEBUGFS
01003         struct local_debugfsdentries {
01004                 struct dentry *rcdir;
01005                 struct dentry *keys;
01006         } debugfs;
01007 #endif
01008 
01009         struct ieee80211_channel *hw_roc_channel;
01010         struct net_device *hw_roc_dev;
01011         struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
01012         struct work_struct hw_roc_start, hw_roc_done;
01013         enum nl80211_channel_type hw_roc_channel_type;
01014         unsigned int hw_roc_duration;
01015         u32 hw_roc_cookie;
01016         bool hw_roc_for_tx;
01017 
01018         /* dummy netdev for use w/ NAPI */
01019         struct net_device napi_dev;
01020 
01021         struct napi_struct napi;
01022 };
01023 
01024 static inline struct ieee80211_sub_if_data *
01025 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
01026 {
01027         return netdev_priv(dev);
01028 }
01029 
01030 /* this struct represents 802.11n's RA/TID combination */
01031 struct ieee80211_ra_tid {
01032         u8 ra[ETH_ALEN];
01033         u16 tid;
01034 };
01035 
01036 static inline struct ieee80211_local *hw_to_local(
01037         struct ieee80211_hw *hw)
01038 {
01039         return container_of(hw, struct ieee80211_local, hw);
01040 }
01041 
01042 static inline struct ieee80211_hw *local_to_hw(
01043         struct ieee80211_local *local)
01044 {
01045         return &local->hw;
01046 }
01047 
01048 
01049 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
01050 {
01051         return compare_ether_addr(raddr, addr) == 0 ||
01052                is_broadcast_ether_addr(raddr);
01053 }
01054 
01055 
01056 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
01057 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
01058 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
01059                                       u32 changed);
01060 void ieee80211_configure_filter(struct ieee80211_local *local);
01061 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
01062 
01063 /* STA code */
01064 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
01065 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
01066                        struct cfg80211_auth_request *req);
01067 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
01068                         struct cfg80211_assoc_request *req);
01069 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
01070                          struct cfg80211_deauth_request *req,
01071                          void *cookie);
01072 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
01073                            struct cfg80211_disassoc_request *req,
01074                            void *cookie);
01075 void ieee80211_send_pspoll(struct ieee80211_local *local,
01076                            struct ieee80211_sub_if_data *sdata);
01077 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
01078 int ieee80211_max_network_latency(struct notifier_block *nb,
01079                                   unsigned long data, void *dummy);
01080 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
01081 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
01082                                       struct ieee80211_channel_sw_ie *sw_elem,
01083                                       struct ieee80211_bss *bss,
01084                                       u64 timestamp);
01085 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
01086 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
01087 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
01088 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
01089                                   struct sk_buff *skb);
01090 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
01091 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
01092 
01093 /* IBSS code */
01094 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
01095 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
01096 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
01097                                         u8 *bssid, u8 *addr, u32 supp_rates,
01098                                         gfp_t gfp);
01099 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
01100                         struct cfg80211_ibss_params *params);
01101 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
01102 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
01103 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
01104 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
01105 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
01106                                    struct sk_buff *skb);
01107 
01108 /* mesh code */
01109 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
01110 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
01111                                    struct sk_buff *skb);
01112 
01113 /* scan/BSS handling */
01114 void ieee80211_scan_work(struct work_struct *work);
01115 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
01116                                     const u8 *ssid, u8 ssid_len,
01117                                     struct ieee80211_channel *chan);
01118 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
01119                            struct cfg80211_scan_request *req);
01120 void ieee80211_scan_cancel(struct ieee80211_local *local);
01121 ieee80211_rx_result
01122 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
01123 
01124 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
01125 struct ieee80211_bss *
01126 ieee80211_bss_info_update(struct ieee80211_local *local,
01127                           struct ieee80211_rx_status *rx_status,
01128                           struct ieee80211_mgmt *mgmt,
01129                           size_t len,
01130                           struct ieee802_11_elems *elems,
01131                           struct ieee80211_channel *channel,
01132                           bool beacon);
01133 struct ieee80211_bss *
01134 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
01135                      u8 *ssid, u8 ssid_len);
01136 void ieee80211_rx_bss_put(struct ieee80211_local *local,
01137                           struct ieee80211_bss *bss);
01138 
01139 /* scheduled scan handling */
01140 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
01141                                        struct cfg80211_sched_scan_request *req);
01142 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
01143 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
01144 
01145 /* off-channel helpers */
01146 void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local);
01147 void ieee80211_offchannel_stop_station(struct ieee80211_local *local);
01148 void ieee80211_offchannel_return(struct ieee80211_local *local,
01149                                  bool enable_beaconing);
01150 void ieee80211_hw_roc_setup(struct ieee80211_local *local);
01151 
01152 /* interface handling */
01153 int ieee80211_iface_init(void);
01154 void ieee80211_iface_exit(void);
01155 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
01156                      struct net_device **new_dev, enum nl80211_iftype type,
01157                      struct vif_params *params);
01158 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
01159                              enum nl80211_iftype type);
01160 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
01161 void ieee80211_remove_interfaces(struct ieee80211_local *local);
01162 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
01163 void ieee80211_recalc_idle(struct ieee80211_local *local);
01164 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
01165                                     const int offset);
01166 
01167 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
01168 {
01169         return test_bit(SDATA_STATE_RUNNING, &sdata->state);
01170 }
01171 
01172 /* tx handling */
01173 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
01174 void ieee80211_tx_pending(unsigned long data);
01175 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
01176                                          struct net_device *dev);
01177 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
01178                                        struct net_device *dev);
01179 
01180 /* HT */
01181 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
01182                                        struct ieee80211_ht_cap *ht_cap_ie,
01183                                        struct ieee80211_sta_ht_cap *ht_cap);
01184 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
01185                           const u8 *da, u16 tid,
01186                           u16 initiator, u16 reason_code);
01187 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
01188                                enum ieee80211_smps_mode smps, const u8 *da,
01189                                const u8 *bssid);
01190 void ieee80211_request_smps_work(struct work_struct *work);
01191 
01192 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
01193                                      u16 initiator, u16 reason, bool stop);
01194 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
01195                                     u16 initiator, u16 reason, bool stop);
01196 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
01197 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
01198                              struct sta_info *sta,
01199                              struct ieee80211_mgmt *mgmt, size_t len);
01200 void ieee80211_process_addba_resp(struct ieee80211_local *local,
01201                                   struct sta_info *sta,
01202                                   struct ieee80211_mgmt *mgmt,
01203                                   size_t len);
01204 void ieee80211_process_addba_request(struct ieee80211_local *local,
01205                                      struct sta_info *sta,
01206                                      struct ieee80211_mgmt *mgmt,
01207                                      size_t len);
01208 
01209 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
01210                                    enum ieee80211_back_parties initiator,
01211                                    bool tx);
01212 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
01213                                     enum ieee80211_back_parties initiator,
01214                                     bool tx);
01215 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
01216 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
01217 void ieee80211_ba_session_work(struct work_struct *work);
01218 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
01219 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
01220 
01221 /* Spectrum management */
01222 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
01223                                        struct ieee80211_mgmt *mgmt,
01224                                        size_t len);
01225 
01226 /* Suspend/resume and hw reconfiguration */
01227 int ieee80211_reconfig(struct ieee80211_local *local);
01228 void ieee80211_stop_device(struct ieee80211_local *local);
01229 
01230 #ifdef CONFIG_PM
01231 int __ieee80211_suspend(struct ieee80211_hw *hw,
01232                         struct cfg80211_wowlan *wowlan);
01233 
01234 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
01235 {
01236         struct ieee80211_local *local = hw_to_local(hw);
01237 
01238         WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
01239                 "%s: resume with hardware scan still in progress\n",
01240                 wiphy_name(hw->wiphy));
01241 
01242         return ieee80211_reconfig(hw_to_local(hw));
01243 }
01244 #else
01245 static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
01246                                       struct cfg80211_wowlan *wowlan)
01247 {
01248         return 0;
01249 }
01250 
01251 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
01252 {
01253         return 0;
01254 }
01255 #endif
01256 
01257 /* utility functions/constants */
01258 extern void *mac80211_wiphy_privid; /* for wiphy privid */
01259 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
01260                         enum nl80211_iftype type);
01261 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
01262                              int rate, int erp, int short_preamble);
01263 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
01264                                      struct ieee80211_hdr *hdr, const u8 *tsc,
01265                                      gfp_t gfp);
01266 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
01267 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
01268 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
01269 void ieee802_11_parse_elems(u8 *start, size_t len,
01270                             struct ieee802_11_elems *elems);
01271 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
01272                                struct ieee802_11_elems *elems,
01273                                u64 filter, u32 crc);
01274 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
01275                               enum ieee80211_band band);
01276 
01277 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
01278 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
01279 void ieee80211_dynamic_ps_timer(unsigned long data);
01280 void ieee80211_send_nullfunc(struct ieee80211_local *local,
01281                              struct ieee80211_sub_if_data *sdata,
01282                              int powersave);
01283 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
01284                              struct ieee80211_hdr *hdr);
01285 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
01286                              struct ieee80211_hdr *hdr, bool ack);
01287 void ieee80211_beacon_connection_loss_work(struct work_struct *work);
01288 
01289 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
01290                                      enum queue_stop_reason reason);
01291 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
01292                                      enum queue_stop_reason reason);
01293 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
01294                                     enum queue_stop_reason reason);
01295 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
01296                                     enum queue_stop_reason reason);
01297 void ieee80211_add_pending_skb(struct ieee80211_local *local,
01298                                struct sk_buff *skb);
01299 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
01300                                 struct sk_buff_head *skbs);
01301 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
01302                                    struct sk_buff_head *skbs,
01303                                    void (*fn)(void *data), void *data);
01304 
01305 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
01306                          u16 transaction, u16 auth_alg,
01307                          u8 *extra, size_t extra_len, const u8 *bssid,
01308                          const u8 *key, u8 key_len, u8 key_idx);
01309 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
01310                              const u8 *ie, size_t ie_len,
01311                              enum ieee80211_band band, u32 rate_mask,
01312                              u8 channel);
01313 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
01314                                           u8 *dst, u32 ratemask,
01315                                           const u8 *ssid, size_t ssid_len,
01316                                           const u8 *ie, size_t ie_len,
01317                                           bool directed);
01318 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
01319                               const u8 *ssid, size_t ssid_len,
01320                               const u8 *ie, size_t ie_len,
01321                               u32 ratemask, bool directed, bool no_cck);
01322 
01323 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
01324                                   const size_t supp_rates_len,
01325                                   const u8 *supp_rates);
01326 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
01327                             struct ieee802_11_elems *elems,
01328                             enum ieee80211_band band);
01329 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
01330                              enum ieee80211_smps_mode smps_mode);
01331 void ieee80211_recalc_smps(struct ieee80211_local *local);
01332 
01333 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
01334                           const u8 *ids, int n_ids, size_t offset);
01335 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
01336 
01337 /* internal work items */
01338 void ieee80211_work_init(struct ieee80211_local *local);
01339 void ieee80211_add_work(struct ieee80211_work *wk);
01340 void free_work(struct ieee80211_work *wk);
01341 void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
01342 ieee80211_rx_result ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data *sdata,
01343                                            struct sk_buff *skb);
01344 int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
01345                                    struct ieee80211_channel *chan,
01346                                    enum nl80211_channel_type channel_type,
01347                                    unsigned int duration, u64 *cookie);
01348 int ieee80211_wk_cancel_remain_on_channel(
01349         struct ieee80211_sub_if_data *sdata, u64 cookie);
01350 
01351 /* channel management */
01352 enum ieee80211_chan_mode {
01353         CHAN_MODE_UNDEFINED,
01354         CHAN_MODE_HOPPING,
01355         CHAN_MODE_FIXED,
01356 };
01357 
01358 enum ieee80211_chan_mode
01359 ieee80211_get_channel_mode(struct ieee80211_local *local,
01360                            struct ieee80211_sub_if_data *ignore);
01361 bool ieee80211_set_channel_type(struct ieee80211_local *local,
01362                                 struct ieee80211_sub_if_data *sdata,
01363                                 enum nl80211_channel_type chantype);
01364 
01365 #ifdef CONFIG_MAC80211_NOINLINE
01366 #define debug_noinline noinline
01367 #else
01368 #define debug_noinline
01369 #endif
01370 
01371 #endif /* IEEE80211_I_H */


ros_rt_wmp
Author(s): Danilo Tardioli, dantard@unizar.es
autogenerated on Mon Oct 6 2014 08:27:10