1f0706e82SJiri Benc /* 2f0706e82SJiri Benc * Copyright 2002-2005, Instant802 Networks, Inc. 3f0706e82SJiri Benc * Copyright 2005, Devicescape Software, Inc. 4f0706e82SJiri Benc * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5f0706e82SJiri Benc * 6f0706e82SJiri Benc * This program is free software; you can redistribute it and/or modify 7f0706e82SJiri Benc * it under the terms of the GNU General Public License version 2 as 8f0706e82SJiri Benc * published by the Free Software Foundation. 9f0706e82SJiri Benc */ 10f0706e82SJiri Benc 11f0706e82SJiri Benc #ifndef IEEE80211_I_H 12f0706e82SJiri Benc #define IEEE80211_I_H 13f0706e82SJiri Benc 14f0706e82SJiri Benc #include <linux/kernel.h> 15f0706e82SJiri Benc #include <linux/device.h> 16f0706e82SJiri Benc #include <linux/if_ether.h> 17f0706e82SJiri Benc #include <linux/interrupt.h> 18f0706e82SJiri Benc #include <linux/list.h> 19f0706e82SJiri Benc #include <linux/netdevice.h> 20f0706e82SJiri Benc #include <linux/skbuff.h> 21f0706e82SJiri Benc #include <linux/workqueue.h> 22f0706e82SJiri Benc #include <linux/types.h> 23f0706e82SJiri Benc #include <linux/spinlock.h> 24f0706e82SJiri Benc #include <net/wireless.h> 25f0706e82SJiri Benc #include "ieee80211_key.h" 26f0706e82SJiri Benc #include "sta_info.h" 27f0706e82SJiri Benc 28f0706e82SJiri Benc /* ieee80211.o internal definitions, etc. These are not included into 29f0706e82SJiri Benc * low-level drivers. */ 30f0706e82SJiri Benc 31f0706e82SJiri Benc #ifndef ETH_P_PAE 32f0706e82SJiri Benc #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ 33f0706e82SJiri Benc #endif /* ETH_P_PAE */ 34f0706e82SJiri Benc 35f0706e82SJiri Benc #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) 36f0706e82SJiri Benc 37f0706e82SJiri Benc struct ieee80211_local; 38f0706e82SJiri Benc 39f0706e82SJiri Benc #define BIT(x) (1 << (x)) 40f0706e82SJiri Benc 41f0706e82SJiri Benc #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3) 42f0706e82SJiri Benc 43f0706e82SJiri Benc /* Maximum number of broadcast/multicast frames to buffer when some of the 44f0706e82SJiri Benc * associated stations are using power saving. */ 45f0706e82SJiri Benc #define AP_MAX_BC_BUFFER 128 46f0706e82SJiri Benc 47f0706e82SJiri Benc /* Maximum number of frames buffered to all STAs, including multicast frames. 48f0706e82SJiri Benc * Note: increasing this limit increases the potential memory requirement. Each 49f0706e82SJiri Benc * frame can be up to about 2 kB long. */ 50f0706e82SJiri Benc #define TOTAL_MAX_TX_BUFFER 512 51f0706e82SJiri Benc 52f0706e82SJiri Benc /* Required encryption head and tailroom */ 53f0706e82SJiri Benc #define IEEE80211_ENCRYPT_HEADROOM 8 54f0706e82SJiri Benc #define IEEE80211_ENCRYPT_TAILROOM 12 55f0706e82SJiri Benc 56f0706e82SJiri Benc /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent 57f0706e82SJiri Benc * reception of at least three fragmented frames. This limit can be increased 58f0706e82SJiri Benc * by changing this define, at the cost of slower frame reassembly and 59f0706e82SJiri Benc * increased memory use (about 2 kB of RAM per entry). */ 60f0706e82SJiri Benc #define IEEE80211_FRAGMENT_MAX 4 61f0706e82SJiri Benc 62f0706e82SJiri Benc struct ieee80211_fragment_entry { 63f0706e82SJiri Benc unsigned long first_frag_time; 64f0706e82SJiri Benc unsigned int seq; 65f0706e82SJiri Benc unsigned int rx_queue; 66f0706e82SJiri Benc unsigned int last_frag; 67f0706e82SJiri Benc unsigned int extra_len; 68f0706e82SJiri Benc struct sk_buff_head skb_list; 69f0706e82SJiri Benc int ccmp; /* Whether fragments were encrypted with CCMP */ 70f0706e82SJiri Benc u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ 71f0706e82SJiri Benc }; 72f0706e82SJiri Benc 73f0706e82SJiri Benc 74f0706e82SJiri Benc struct ieee80211_sta_bss { 75f0706e82SJiri Benc struct list_head list; 76f0706e82SJiri Benc struct ieee80211_sta_bss *hnext; 77f0706e82SJiri Benc atomic_t users; 78f0706e82SJiri Benc 79f0706e82SJiri Benc u8 bssid[ETH_ALEN]; 80f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 81f0706e82SJiri Benc size_t ssid_len; 82f0706e82SJiri Benc u16 capability; /* host byte order */ 83f0706e82SJiri Benc int hw_mode; 84f0706e82SJiri Benc int channel; 85f0706e82SJiri Benc int freq; 86f0706e82SJiri Benc int rssi, signal, noise; 87f0706e82SJiri Benc u8 *wpa_ie; 88f0706e82SJiri Benc size_t wpa_ie_len; 89f0706e82SJiri Benc u8 *rsn_ie; 90f0706e82SJiri Benc size_t rsn_ie_len; 91f0706e82SJiri Benc u8 *wmm_ie; 92f0706e82SJiri Benc size_t wmm_ie_len; 93f0706e82SJiri Benc #define IEEE80211_MAX_SUPP_RATES 32 94f0706e82SJiri Benc u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 95f0706e82SJiri Benc size_t supp_rates_len; 96f0706e82SJiri Benc int beacon_int; 97f0706e82SJiri Benc u64 timestamp; 98f0706e82SJiri Benc 99f0706e82SJiri Benc int probe_resp; 100f0706e82SJiri Benc unsigned long last_update; 101f0706e82SJiri Benc 1025628221cSDaniel Drake /* during assocation, we save an ERP value from a probe response so 1035628221cSDaniel Drake * that we can feed ERP info to the driver when handling the 1045628221cSDaniel Drake * association completes. these fields probably won't be up-to-date 1055628221cSDaniel Drake * otherwise, you probably don't want to use them. */ 1065628221cSDaniel Drake int has_erp_value; 1075628221cSDaniel Drake u8 erp_value; 108f0706e82SJiri Benc }; 109f0706e82SJiri Benc 110f0706e82SJiri Benc 111f0706e82SJiri Benc typedef enum { 112f0706e82SJiri Benc TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED 113f0706e82SJiri Benc } ieee80211_txrx_result; 114f0706e82SJiri Benc 115f0706e82SJiri Benc struct ieee80211_txrx_data { 116f0706e82SJiri Benc struct sk_buff *skb; 117f0706e82SJiri Benc struct net_device *dev; 118f0706e82SJiri Benc struct ieee80211_local *local; 119f0706e82SJiri Benc struct ieee80211_sub_if_data *sdata; 120f0706e82SJiri Benc struct sta_info *sta; 121f0706e82SJiri Benc u16 fc, ethertype; 122f0706e82SJiri Benc struct ieee80211_key *key; 123f0706e82SJiri Benc unsigned int fragmented:1; /* whether the MSDU was fragmented */ 124f0706e82SJiri Benc union { 125f0706e82SJiri Benc struct { 126f0706e82SJiri Benc struct ieee80211_tx_control *control; 127f0706e82SJiri Benc unsigned int unicast:1; 128f0706e82SJiri Benc unsigned int ps_buffered:1; 129f0706e82SJiri Benc unsigned int short_preamble:1; 130f0706e82SJiri Benc unsigned int probe_last_frag:1; 131f0706e82SJiri Benc struct ieee80211_hw_mode *mode; 132f0706e82SJiri Benc struct ieee80211_rate *rate; 133f0706e82SJiri Benc /* use this rate (if set) for last fragment; rate can 134f0706e82SJiri Benc * be set to lower rate for the first fragments, e.g., 135f0706e82SJiri Benc * when using CTS protection with IEEE 802.11g. */ 136f0706e82SJiri Benc struct ieee80211_rate *last_frag_rate; 137f0706e82SJiri Benc int last_frag_hwrate; 138f0706e82SJiri Benc int mgmt_interface; 139f0706e82SJiri Benc 140f0706e82SJiri Benc /* Extra fragments (in addition to the first fragment 141f0706e82SJiri Benc * in skb) */ 142f0706e82SJiri Benc int num_extra_frag; 143f0706e82SJiri Benc struct sk_buff **extra_frag; 144f0706e82SJiri Benc } tx; 145f0706e82SJiri Benc struct { 146f0706e82SJiri Benc struct ieee80211_rx_status *status; 147f0706e82SJiri Benc int sent_ps_buffered; 148f0706e82SJiri Benc int queue; 149f0706e82SJiri Benc int load; 150f0706e82SJiri Benc unsigned int in_scan:1; 151f0706e82SJiri Benc /* frame is destined to interface currently processed 152f0706e82SJiri Benc * (including multicast frames) */ 153f0706e82SJiri Benc unsigned int ra_match:1; 154f0706e82SJiri Benc } rx; 155f0706e82SJiri Benc } u; 156f0706e82SJiri Benc }; 157f0706e82SJiri Benc 158f0706e82SJiri Benc /* Stored in sk_buff->cb */ 159f0706e82SJiri Benc struct ieee80211_tx_packet_data { 160f0706e82SJiri Benc int ifindex; 161f0706e82SJiri Benc unsigned long jiffies; 162f0706e82SJiri Benc unsigned int req_tx_status:1; 163f0706e82SJiri Benc unsigned int do_not_encrypt:1; 164f0706e82SJiri Benc unsigned int requeue:1; 165f0706e82SJiri Benc unsigned int mgmt_iface:1; 166f0706e82SJiri Benc unsigned int queue:4; 167f0706e82SJiri Benc }; 168f0706e82SJiri Benc 169f0706e82SJiri Benc struct ieee80211_tx_stored_packet { 170f0706e82SJiri Benc struct ieee80211_tx_control control; 171f0706e82SJiri Benc struct sk_buff *skb; 172f0706e82SJiri Benc int num_extra_frag; 173f0706e82SJiri Benc struct sk_buff **extra_frag; 174f0706e82SJiri Benc int last_frag_rateidx; 175f0706e82SJiri Benc int last_frag_hwrate; 176f0706e82SJiri Benc struct ieee80211_rate *last_frag_rate; 177f0706e82SJiri Benc unsigned int last_frag_rate_ctrl_probe:1; 178f0706e82SJiri Benc }; 179f0706e82SJiri Benc 180f0706e82SJiri Benc typedef ieee80211_txrx_result (*ieee80211_tx_handler) 181f0706e82SJiri Benc (struct ieee80211_txrx_data *tx); 182f0706e82SJiri Benc 183f0706e82SJiri Benc typedef ieee80211_txrx_result (*ieee80211_rx_handler) 184f0706e82SJiri Benc (struct ieee80211_txrx_data *rx); 185f0706e82SJiri Benc 186f0706e82SJiri Benc struct ieee80211_if_ap { 187f0706e82SJiri Benc u8 *beacon_head, *beacon_tail; 188f0706e82SJiri Benc int beacon_head_len, beacon_tail_len; 189f0706e82SJiri Benc 190f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 191f0706e82SJiri Benc size_t ssid_len; 192f0706e82SJiri Benc u8 *generic_elem; 193f0706e82SJiri Benc size_t generic_elem_len; 194f0706e82SJiri Benc 195f0706e82SJiri Benc /* yes, this looks ugly, but guarantees that we can later use 196f0706e82SJiri Benc * bitmap_empty :) 197f0706e82SJiri Benc * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */ 198f0706e82SJiri Benc u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; 199f0706e82SJiri Benc atomic_t num_sta_ps; /* number of stations in PS mode */ 200f0706e82SJiri Benc struct sk_buff_head ps_bc_buf; 201f0706e82SJiri Benc int dtim_period, dtim_count; 202f0706e82SJiri Benc int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ 203f0706e82SJiri Benc int max_ratectrl_rateidx; /* max TX rateidx for rate control */ 204f0706e82SJiri Benc int num_beacons; /* number of TXed beacon frames for this BSS */ 205f0706e82SJiri Benc }; 206f0706e82SJiri Benc 207f0706e82SJiri Benc struct ieee80211_if_wds { 208f0706e82SJiri Benc u8 remote_addr[ETH_ALEN]; 209f0706e82SJiri Benc struct sta_info *sta; 210f0706e82SJiri Benc }; 211f0706e82SJiri Benc 212f0706e82SJiri Benc struct ieee80211_if_vlan { 213f0706e82SJiri Benc u8 id; 214f0706e82SJiri Benc }; 215f0706e82SJiri Benc 216f0706e82SJiri Benc struct ieee80211_if_sta { 217f0706e82SJiri Benc enum { 218f0706e82SJiri Benc IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, 219f0706e82SJiri Benc IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, 220f0706e82SJiri Benc IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED 221f0706e82SJiri Benc } state; 222f0706e82SJiri Benc struct timer_list timer; 223f0706e82SJiri Benc struct work_struct work; 224f0706e82SJiri Benc u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 225f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 226f0706e82SJiri Benc size_t ssid_len; 227f0706e82SJiri Benc u16 aid; 228f0706e82SJiri Benc u16 ap_capab, capab; 229f0706e82SJiri Benc u8 *extra_ie; /* to be added to the end of AssocReq */ 230f0706e82SJiri Benc size_t extra_ie_len; 231f0706e82SJiri Benc 232f0706e82SJiri Benc /* The last AssocReq/Resp IEs */ 233f0706e82SJiri Benc u8 *assocreq_ies, *assocresp_ies; 234f0706e82SJiri Benc size_t assocreq_ies_len, assocresp_ies_len; 235f0706e82SJiri Benc 236f0706e82SJiri Benc int auth_tries, assoc_tries; 237f0706e82SJiri Benc 238f0706e82SJiri Benc unsigned int ssid_set:1; 239f0706e82SJiri Benc unsigned int bssid_set:1; 240f0706e82SJiri Benc unsigned int prev_bssid_set:1; 241f0706e82SJiri Benc unsigned int authenticated:1; 242f0706e82SJiri Benc unsigned int associated:1; 243f0706e82SJiri Benc unsigned int probereq_poll:1; 244f0706e82SJiri Benc unsigned int create_ibss:1; 245f0706e82SJiri Benc unsigned int mixed_cell:1; 246f0706e82SJiri Benc unsigned int wmm_enabled:1; 247f0706e82SJiri Benc unsigned int auto_ssid_sel:1; 248f0706e82SJiri Benc unsigned int auto_bssid_sel:1; 249f0706e82SJiri Benc unsigned int auto_channel_sel:1; 250f0706e82SJiri Benc #define IEEE80211_STA_REQ_SCAN 0 251f0706e82SJiri Benc #define IEEE80211_STA_REQ_AUTH 1 252f0706e82SJiri Benc #define IEEE80211_STA_REQ_RUN 2 253f0706e82SJiri Benc unsigned long request; 254f0706e82SJiri Benc struct sk_buff_head skb_queue; 255f0706e82SJiri Benc 256f0706e82SJiri Benc int key_mgmt; 257f0706e82SJiri Benc unsigned long last_probe; 258f0706e82SJiri Benc 259f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_OPEN BIT(0) 260f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) 261f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_LEAP BIT(2) 262f0706e82SJiri Benc unsigned int auth_algs; /* bitfield of allowed auth algs */ 263f0706e82SJiri Benc int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ 264f0706e82SJiri Benc int auth_transaction; 265f0706e82SJiri Benc 266f0706e82SJiri Benc unsigned long ibss_join_req; 267f0706e82SJiri Benc struct sk_buff *probe_resp; /* ProbeResp template for IBSS */ 268f0706e82SJiri Benc u32 supp_rates_bits; 269f0706e82SJiri Benc 270f0706e82SJiri Benc int wmm_last_param_set; 271f0706e82SJiri Benc }; 272f0706e82SJiri Benc 273f0706e82SJiri Benc 274f0706e82SJiri Benc struct ieee80211_sub_if_data { 275f0706e82SJiri Benc struct list_head list; 276f0706e82SJiri Benc unsigned int type; 277f0706e82SJiri Benc 278f0706e82SJiri Benc struct wireless_dev wdev; 279f0706e82SJiri Benc 280f0706e82SJiri Benc struct net_device *dev; 281f0706e82SJiri Benc struct ieee80211_local *local; 282f0706e82SJiri Benc 283f0706e82SJiri Benc int mc_count; 284f0706e82SJiri Benc unsigned int allmulti:1; 285f0706e82SJiri Benc unsigned int promisc:1; 28663fc33ceSDaniel Drake unsigned int use_protection:1; /* CTS protect ERP frames */ 287f0706e82SJiri Benc 288f0706e82SJiri Benc struct net_device_stats stats; 289f0706e82SJiri Benc int drop_unencrypted; 290f0706e82SJiri Benc int eapol; /* 0 = process EAPOL frames as normal data frames, 291f0706e82SJiri Benc * 1 = send EAPOL frames through wlan#ap to hostapd 292f0706e82SJiri Benc * (default) */ 293f0706e82SJiri Benc int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized 294f0706e82SJiri Benc * port */ 295f0706e82SJiri Benc 296f0706e82SJiri Benc u16 sequence; 297f0706e82SJiri Benc 298f0706e82SJiri Benc /* Fragment table for host-based reassembly */ 299f0706e82SJiri Benc struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; 300f0706e82SJiri Benc unsigned int fragment_next; 301f0706e82SJiri Benc 302f0706e82SJiri Benc #define NUM_DEFAULT_KEYS 4 303f0706e82SJiri Benc struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; 304f0706e82SJiri Benc struct ieee80211_key *default_key; 305f0706e82SJiri Benc 306f0706e82SJiri Benc struct ieee80211_if_ap *bss; /* BSS that this device belongs to */ 307f0706e82SJiri Benc 308f0706e82SJiri Benc union { 309f0706e82SJiri Benc struct ieee80211_if_ap ap; 310f0706e82SJiri Benc struct ieee80211_if_wds wds; 311f0706e82SJiri Benc struct ieee80211_if_vlan vlan; 312f0706e82SJiri Benc struct ieee80211_if_sta sta; 313f0706e82SJiri Benc } u; 314f0706e82SJiri Benc int channel_use; 315f0706e82SJiri Benc int channel_use_raw; 316e9f207f0SJiri Benc 317e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 318e9f207f0SJiri Benc struct dentry *debugfsdir; 319e9f207f0SJiri Benc union { 320e9f207f0SJiri Benc struct { 321e9f207f0SJiri Benc struct dentry *channel_use; 322e9f207f0SJiri Benc struct dentry *drop_unencrypted; 323e9f207f0SJiri Benc struct dentry *eapol; 324e9f207f0SJiri Benc struct dentry *ieee8021_x; 325e9f207f0SJiri Benc struct dentry *state; 326e9f207f0SJiri Benc struct dentry *bssid; 327e9f207f0SJiri Benc struct dentry *prev_bssid; 328e9f207f0SJiri Benc struct dentry *ssid_len; 329e9f207f0SJiri Benc struct dentry *aid; 330e9f207f0SJiri Benc struct dentry *ap_capab; 331e9f207f0SJiri Benc struct dentry *capab; 332e9f207f0SJiri Benc struct dentry *extra_ie_len; 333e9f207f0SJiri Benc struct dentry *auth_tries; 334e9f207f0SJiri Benc struct dentry *assoc_tries; 335e9f207f0SJiri Benc struct dentry *auth_algs; 336e9f207f0SJiri Benc struct dentry *auth_alg; 337e9f207f0SJiri Benc struct dentry *auth_transaction; 338e9f207f0SJiri Benc struct dentry *flags; 339e9f207f0SJiri Benc } sta; 340e9f207f0SJiri Benc struct { 341e9f207f0SJiri Benc struct dentry *channel_use; 342e9f207f0SJiri Benc struct dentry *drop_unencrypted; 343e9f207f0SJiri Benc struct dentry *eapol; 344e9f207f0SJiri Benc struct dentry *ieee8021_x; 345e9f207f0SJiri Benc struct dentry *num_sta_ps; 346e9f207f0SJiri Benc struct dentry *dtim_period; 347e9f207f0SJiri Benc struct dentry *dtim_count; 348e9f207f0SJiri Benc struct dentry *num_beacons; 349e9f207f0SJiri Benc struct dentry *force_unicast_rateidx; 350e9f207f0SJiri Benc struct dentry *max_ratectrl_rateidx; 351e9f207f0SJiri Benc struct dentry *num_buffered_multicast; 352e9f207f0SJiri Benc struct dentry *beacon_head_len; 353e9f207f0SJiri Benc struct dentry *beacon_tail_len; 354e9f207f0SJiri Benc } ap; 355e9f207f0SJiri Benc struct { 356e9f207f0SJiri Benc struct dentry *channel_use; 357e9f207f0SJiri Benc struct dentry *drop_unencrypted; 358e9f207f0SJiri Benc struct dentry *eapol; 359e9f207f0SJiri Benc struct dentry *ieee8021_x; 360e9f207f0SJiri Benc struct dentry *peer; 361e9f207f0SJiri Benc } wds; 362e9f207f0SJiri Benc struct { 363e9f207f0SJiri Benc struct dentry *channel_use; 364e9f207f0SJiri Benc struct dentry *drop_unencrypted; 365e9f207f0SJiri Benc struct dentry *eapol; 366e9f207f0SJiri Benc struct dentry *ieee8021_x; 367e9f207f0SJiri Benc struct dentry *vlan_id; 368e9f207f0SJiri Benc } vlan; 369e9f207f0SJiri Benc struct { 370e9f207f0SJiri Benc struct dentry *mode; 371e9f207f0SJiri Benc } monitor; 372e9f207f0SJiri Benc struct dentry *default_key; 373e9f207f0SJiri Benc } debugfs; 374e9f207f0SJiri Benc #endif 375f0706e82SJiri Benc }; 376f0706e82SJiri Benc 377f0706e82SJiri Benc #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) 378f0706e82SJiri Benc 379f0706e82SJiri Benc enum { 380f0706e82SJiri Benc IEEE80211_RX_MSG = 1, 381f0706e82SJiri Benc IEEE80211_TX_STATUS_MSG = 2, 382f0706e82SJiri Benc }; 383f0706e82SJiri Benc 384f0706e82SJiri Benc struct ieee80211_local { 385f0706e82SJiri Benc /* embed the driver visible part. 386f0706e82SJiri Benc * don't cast (use the static inlines below), but we keep 387f0706e82SJiri Benc * it first anyway so they become a no-op */ 388f0706e82SJiri Benc struct ieee80211_hw hw; 389f0706e82SJiri Benc 390f0706e82SJiri Benc const struct ieee80211_ops *ops; 391f0706e82SJiri Benc 392f0706e82SJiri Benc /* List of registered struct ieee80211_hw_mode */ 393f0706e82SJiri Benc struct list_head modes_list; 394f0706e82SJiri Benc 395f0706e82SJiri Benc struct net_device *mdev; /* wmaster# - "master" 802.11 device */ 396f0706e82SJiri Benc struct net_device *apdev; /* wlan#ap - management frames (hostapd) */ 397f0706e82SJiri Benc int open_count; 398f0706e82SJiri Benc int monitors; 399f0706e82SJiri Benc struct iw_statistics wstats; 400f0706e82SJiri Benc u8 wstats_flags; 401b306f453SJohannes Berg int tx_headroom; /* required headroom for hardware/radiotap */ 402f0706e82SJiri Benc 403f0706e82SJiri Benc enum { 404f0706e82SJiri Benc IEEE80211_DEV_UNINITIALIZED = 0, 405f0706e82SJiri Benc IEEE80211_DEV_REGISTERED, 406f0706e82SJiri Benc IEEE80211_DEV_UNREGISTERED, 407f0706e82SJiri Benc } reg_state; 408f0706e82SJiri Benc 409f0706e82SJiri Benc /* Tasklet and skb queue to process calls from IRQ mode. All frames 410f0706e82SJiri Benc * added to skb_queue will be processed, but frames in 411f0706e82SJiri Benc * skb_queue_unreliable may be dropped if the total length of these 412f0706e82SJiri Benc * queues increases over the limit. */ 413f0706e82SJiri Benc #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 414f0706e82SJiri Benc struct tasklet_struct tasklet; 415f0706e82SJiri Benc struct sk_buff_head skb_queue; 416f0706e82SJiri Benc struct sk_buff_head skb_queue_unreliable; 417f0706e82SJiri Benc 418f0706e82SJiri Benc /* Station data structures */ 419f0706e82SJiri Benc spinlock_t sta_lock; /* mutex for STA data structures */ 420f0706e82SJiri Benc int num_sta; /* number of stations in sta_list */ 421f0706e82SJiri Benc struct list_head sta_list; 422f0706e82SJiri Benc struct list_head deleted_sta_list; 423f0706e82SJiri Benc struct sta_info *sta_hash[STA_HASH_SIZE]; 424f0706e82SJiri Benc struct timer_list sta_cleanup; 425f0706e82SJiri Benc 426f0706e82SJiri Benc unsigned long state[NUM_TX_DATA_QUEUES]; 427f0706e82SJiri Benc struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES]; 428f0706e82SJiri Benc struct tasklet_struct tx_pending_tasklet; 429f0706e82SJiri Benc 430f0706e82SJiri Benc int mc_count; /* total count of multicast entries in all interfaces */ 431f0706e82SJiri Benc int iff_allmultis, iff_promiscs; 432f0706e82SJiri Benc /* number of interfaces with corresponding IFF_ flags */ 433f0706e82SJiri Benc 434f0706e82SJiri Benc struct rate_control_ref *rate_ctrl; 435f0706e82SJiri Benc 436f0706e82SJiri Benc int next_mode; /* MODE_IEEE80211* 437f0706e82SJiri Benc * The mode preference for next channel change. This is 438f0706e82SJiri Benc * used to select .11g vs. .11b channels (or 4.9 GHz vs. 439f0706e82SJiri Benc * .11a) when the channel number is not unique. */ 440f0706e82SJiri Benc 441f0706e82SJiri Benc /* Supported and basic rate filters for different modes. These are 442f0706e82SJiri Benc * pointers to -1 terminated lists and rates in 100 kbps units. */ 443f0706e82SJiri Benc int *supp_rates[NUM_IEEE80211_MODES]; 444f0706e82SJiri Benc int *basic_rates[NUM_IEEE80211_MODES]; 445f0706e82SJiri Benc 446f0706e82SJiri Benc int rts_threshold; 447f0706e82SJiri Benc int fragmentation_threshold; 448f0706e82SJiri Benc int short_retry_limit; /* dot11ShortRetryLimit */ 449f0706e82SJiri Benc int long_retry_limit; /* dot11LongRetryLimit */ 450f0706e82SJiri Benc int short_preamble; /* use short preamble with IEEE 802.11b */ 451f0706e82SJiri Benc 452f0706e82SJiri Benc struct crypto_blkcipher *wep_tx_tfm; 453f0706e82SJiri Benc struct crypto_blkcipher *wep_rx_tfm; 454f0706e82SJiri Benc u32 wep_iv; 455f0706e82SJiri Benc int key_tx_rx_threshold; /* number of times any key can be used in TX 456f0706e82SJiri Benc * or RX before generating a rekey 457f0706e82SJiri Benc * notification; 0 = notification disabled. */ 458f0706e82SJiri Benc 459f0706e82SJiri Benc int bridge_packets; /* bridge packets between associated stations and 460f0706e82SJiri Benc * deliver multicast frames both back to wireless 461f0706e82SJiri Benc * media and to the local net stack */ 462f0706e82SJiri Benc 463f0706e82SJiri Benc ieee80211_rx_handler *rx_pre_handlers; 464f0706e82SJiri Benc ieee80211_rx_handler *rx_handlers; 465f0706e82SJiri Benc ieee80211_tx_handler *tx_handlers; 466f0706e82SJiri Benc 467f0706e82SJiri Benc rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under 468f0706e82SJiri Benc * sta_bss_lock or sta_lock. */ 469f0706e82SJiri Benc struct list_head sub_if_list; 470f0706e82SJiri Benc int sta_scanning; 471f0706e82SJiri Benc int scan_channel_idx; 472f0706e82SJiri Benc enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; 473f0706e82SJiri Benc unsigned long last_scan_completed; 474f0706e82SJiri Benc struct delayed_work scan_work; 475f0706e82SJiri Benc struct net_device *scan_dev; 476f0706e82SJiri Benc struct ieee80211_channel *oper_channel, *scan_channel; 477f0706e82SJiri Benc struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode; 478f0706e82SJiri Benc u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; 479f0706e82SJiri Benc size_t scan_ssid_len; 480f0706e82SJiri Benc struct list_head sta_bss_list; 481f0706e82SJiri Benc struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE]; 482f0706e82SJiri Benc spinlock_t sta_bss_lock; 483f0706e82SJiri Benc #define IEEE80211_SCAN_MATCH_SSID BIT(0) 484f0706e82SJiri Benc #define IEEE80211_SCAN_WPA_ONLY BIT(1) 485f0706e82SJiri Benc #define IEEE80211_SCAN_EXTRA_INFO BIT(2) 486f0706e82SJiri Benc int scan_flags; 487f0706e82SJiri Benc 488f0706e82SJiri Benc /* SNMP counters */ 489f0706e82SJiri Benc /* dot11CountersTable */ 490f0706e82SJiri Benc u32 dot11TransmittedFragmentCount; 491f0706e82SJiri Benc u32 dot11MulticastTransmittedFrameCount; 492f0706e82SJiri Benc u32 dot11FailedCount; 493f0706e82SJiri Benc u32 dot11RetryCount; 494f0706e82SJiri Benc u32 dot11MultipleRetryCount; 495f0706e82SJiri Benc u32 dot11FrameDuplicateCount; 496f0706e82SJiri Benc u32 dot11ReceivedFragmentCount; 497f0706e82SJiri Benc u32 dot11MulticastReceivedFrameCount; 498f0706e82SJiri Benc u32 dot11TransmittedFrameCount; 499f0706e82SJiri Benc u32 dot11WEPUndecryptableCount; 500f0706e82SJiri Benc 501f0706e82SJiri Benc #ifdef CONFIG_MAC80211_LEDS 502f0706e82SJiri Benc int tx_led_counter, rx_led_counter; 503f0706e82SJiri Benc struct led_trigger *tx_led, *rx_led; 504f0706e82SJiri Benc char tx_led_name[32], rx_led_name[32]; 505f0706e82SJiri Benc #endif 506f0706e82SJiri Benc 507f0706e82SJiri Benc u32 channel_use; 508f0706e82SJiri Benc u32 channel_use_raw; 509f0706e82SJiri Benc u32 stat_time; 510f0706e82SJiri Benc struct timer_list stat_timer; 511f0706e82SJiri Benc 512e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 513e9f207f0SJiri Benc struct work_struct sta_debugfs_add; 514e9f207f0SJiri Benc #endif 515e9f207f0SJiri Benc 516f0706e82SJiri Benc enum { 517f0706e82SJiri Benc STA_ANTENNA_SEL_AUTO = 0, 518f0706e82SJiri Benc STA_ANTENNA_SEL_SW_CTRL = 1, 519f0706e82SJiri Benc STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2 520f0706e82SJiri Benc } sta_antenna_sel; 521f0706e82SJiri Benc 522f0706e82SJiri Benc #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 523f0706e82SJiri Benc /* TX/RX handler statistics */ 524f0706e82SJiri Benc unsigned int tx_handlers_drop; 525f0706e82SJiri Benc unsigned int tx_handlers_queued; 526f0706e82SJiri Benc unsigned int tx_handlers_drop_unencrypted; 527f0706e82SJiri Benc unsigned int tx_handlers_drop_fragment; 528f0706e82SJiri Benc unsigned int tx_handlers_drop_wep; 529f0706e82SJiri Benc unsigned int tx_handlers_drop_not_assoc; 530f0706e82SJiri Benc unsigned int tx_handlers_drop_unauth_port; 531f0706e82SJiri Benc unsigned int rx_handlers_drop; 532f0706e82SJiri Benc unsigned int rx_handlers_queued; 533f0706e82SJiri Benc unsigned int rx_handlers_drop_nullfunc; 534f0706e82SJiri Benc unsigned int rx_handlers_drop_defrag; 535f0706e82SJiri Benc unsigned int rx_handlers_drop_short; 536f0706e82SJiri Benc unsigned int rx_handlers_drop_passive_scan; 537f0706e82SJiri Benc unsigned int tx_expand_skb_head; 538f0706e82SJiri Benc unsigned int tx_expand_skb_head_cloned; 539f0706e82SJiri Benc unsigned int rx_expand_skb_head; 540f0706e82SJiri Benc unsigned int rx_expand_skb_head2; 541f0706e82SJiri Benc unsigned int rx_handlers_fragments; 542f0706e82SJiri Benc unsigned int tx_status_drop; 543f0706e82SJiri Benc unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; 544f0706e82SJiri Benc unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; 545f0706e82SJiri Benc #define I802_DEBUG_INC(c) (c)++ 546f0706e82SJiri Benc #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 547f0706e82SJiri Benc #define I802_DEBUG_INC(c) do { } while (0) 548f0706e82SJiri Benc #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 549f0706e82SJiri Benc 550f0706e82SJiri Benc 551f0706e82SJiri Benc int default_wep_only; /* only default WEP keys are used with this 552f0706e82SJiri Benc * interface; this is used to decide when hwaccel 553f0706e82SJiri Benc * can be used with default keys */ 554f0706e82SJiri Benc int total_ps_buffered; /* total number of all buffered unicast and 555f0706e82SJiri Benc * multicast packets for power saving stations 556f0706e82SJiri Benc */ 557f0706e82SJiri Benc int allow_broadcast_always; /* whether to allow TX of broadcast frames 558f0706e82SJiri Benc * even when there are no associated STAs 559f0706e82SJiri Benc */ 560f0706e82SJiri Benc 561f0706e82SJiri Benc int wifi_wme_noack_test; 562f0706e82SJiri Benc unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ 563f0706e82SJiri Benc 564f0706e82SJiri Benc unsigned int enabled_modes; /* bitfield of allowed modes; 565f0706e82SJiri Benc * (1 << MODE_*) */ 566f0706e82SJiri Benc unsigned int hw_modes; /* bitfield of supported hardware modes; 567f0706e82SJiri Benc * (1 << MODE_*) */ 568f0706e82SJiri Benc 569f0706e82SJiri Benc int user_space_mlme; 570e9f207f0SJiri Benc 571e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 572e9f207f0SJiri Benc struct local_debugfsdentries { 573e9f207f0SJiri Benc struct dentry *channel; 574e9f207f0SJiri Benc struct dentry *frequency; 575e9f207f0SJiri Benc struct dentry *radar_detect; 576e9f207f0SJiri Benc struct dentry *antenna_sel_tx; 577e9f207f0SJiri Benc struct dentry *antenna_sel_rx; 578e9f207f0SJiri Benc struct dentry *bridge_packets; 579e9f207f0SJiri Benc struct dentry *key_tx_rx_threshold; 580e9f207f0SJiri Benc struct dentry *rts_threshold; 581e9f207f0SJiri Benc struct dentry *fragmentation_threshold; 582e9f207f0SJiri Benc struct dentry *short_retry_limit; 583e9f207f0SJiri Benc struct dentry *long_retry_limit; 584e9f207f0SJiri Benc struct dentry *total_ps_buffered; 585e9f207f0SJiri Benc struct dentry *mode; 586e9f207f0SJiri Benc struct dentry *wep_iv; 587e9f207f0SJiri Benc struct dentry *tx_power_reduction; 588e9f207f0SJiri Benc struct dentry *modes; 589e9f207f0SJiri Benc struct dentry *statistics; 590e9f207f0SJiri Benc struct local_debugfsdentries_statsdentries { 591e9f207f0SJiri Benc struct dentry *transmitted_fragment_count; 592e9f207f0SJiri Benc struct dentry *multicast_transmitted_frame_count; 593e9f207f0SJiri Benc struct dentry *failed_count; 594e9f207f0SJiri Benc struct dentry *retry_count; 595e9f207f0SJiri Benc struct dentry *multiple_retry_count; 596e9f207f0SJiri Benc struct dentry *frame_duplicate_count; 597e9f207f0SJiri Benc struct dentry *received_fragment_count; 598e9f207f0SJiri Benc struct dentry *multicast_received_frame_count; 599e9f207f0SJiri Benc struct dentry *transmitted_frame_count; 600e9f207f0SJiri Benc struct dentry *wep_undecryptable_count; 601e9f207f0SJiri Benc struct dentry *num_scans; 602e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 603e9f207f0SJiri Benc struct dentry *tx_handlers_drop; 604e9f207f0SJiri Benc struct dentry *tx_handlers_queued; 605e9f207f0SJiri Benc struct dentry *tx_handlers_drop_unencrypted; 606e9f207f0SJiri Benc struct dentry *tx_handlers_drop_fragment; 607e9f207f0SJiri Benc struct dentry *tx_handlers_drop_wep; 608e9f207f0SJiri Benc struct dentry *tx_handlers_drop_not_assoc; 609e9f207f0SJiri Benc struct dentry *tx_handlers_drop_unauth_port; 610e9f207f0SJiri Benc struct dentry *rx_handlers_drop; 611e9f207f0SJiri Benc struct dentry *rx_handlers_queued; 612e9f207f0SJiri Benc struct dentry *rx_handlers_drop_nullfunc; 613e9f207f0SJiri Benc struct dentry *rx_handlers_drop_defrag; 614e9f207f0SJiri Benc struct dentry *rx_handlers_drop_short; 615e9f207f0SJiri Benc struct dentry *rx_handlers_drop_passive_scan; 616e9f207f0SJiri Benc struct dentry *tx_expand_skb_head; 617e9f207f0SJiri Benc struct dentry *tx_expand_skb_head_cloned; 618e9f207f0SJiri Benc struct dentry *rx_expand_skb_head; 619e9f207f0SJiri Benc struct dentry *rx_expand_skb_head2; 620e9f207f0SJiri Benc struct dentry *rx_handlers_fragments; 621e9f207f0SJiri Benc struct dentry *tx_status_drop; 622e9f207f0SJiri Benc struct dentry *wme_tx_queue; 623e9f207f0SJiri Benc struct dentry *wme_rx_queue; 624e9f207f0SJiri Benc #endif 625e9f207f0SJiri Benc struct dentry *dot11ACKFailureCount; 626e9f207f0SJiri Benc struct dentry *dot11RTSFailureCount; 627e9f207f0SJiri Benc struct dentry *dot11FCSErrorCount; 628e9f207f0SJiri Benc struct dentry *dot11RTSSuccessCount; 629e9f207f0SJiri Benc } stats; 630e9f207f0SJiri Benc struct dentry *stations; 631e9f207f0SJiri Benc struct dentry *keys; 632e9f207f0SJiri Benc } debugfs; 633e9f207f0SJiri Benc #endif 634f0706e82SJiri Benc }; 635f0706e82SJiri Benc 636f0706e82SJiri Benc static inline struct ieee80211_local *hw_to_local( 637f0706e82SJiri Benc struct ieee80211_hw *hw) 638f0706e82SJiri Benc { 639f0706e82SJiri Benc return container_of(hw, struct ieee80211_local, hw); 640f0706e82SJiri Benc } 641f0706e82SJiri Benc 642f0706e82SJiri Benc static inline struct ieee80211_hw *local_to_hw( 643f0706e82SJiri Benc struct ieee80211_local *local) 644f0706e82SJiri Benc { 645f0706e82SJiri Benc return &local->hw; 646f0706e82SJiri Benc } 647f0706e82SJiri Benc 648f0706e82SJiri Benc enum ieee80211_link_state_t { 649f0706e82SJiri Benc IEEE80211_LINK_STATE_XOFF = 0, 650f0706e82SJiri Benc IEEE80211_LINK_STATE_PENDING, 651f0706e82SJiri Benc }; 652f0706e82SJiri Benc 653f0706e82SJiri Benc struct sta_attribute { 654f0706e82SJiri Benc struct attribute attr; 655f0706e82SJiri Benc ssize_t (*show)(const struct sta_info *, char *buf); 656f0706e82SJiri Benc ssize_t (*store)(struct sta_info *, const char *buf, size_t count); 657f0706e82SJiri Benc }; 658f0706e82SJiri Benc 659f0706e82SJiri Benc static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid) 660f0706e82SJiri Benc { 661f0706e82SJiri Benc /* 662f0706e82SJiri Benc * This format has ben mandated by the IEEE specifications, 663f0706e82SJiri Benc * so this line may not be changed to use the __set_bit() format. 664f0706e82SJiri Benc */ 665f0706e82SJiri Benc bss->tim[(aid)/8] |= 1<<((aid) % 8); 666f0706e82SJiri Benc } 667f0706e82SJiri Benc 668f0706e82SJiri Benc static inline void bss_tim_set(struct ieee80211_local *local, 669f0706e82SJiri Benc struct ieee80211_if_ap *bss, int aid) 670f0706e82SJiri Benc { 671f0706e82SJiri Benc spin_lock_bh(&local->sta_lock); 672f0706e82SJiri Benc __bss_tim_set(bss, aid); 673f0706e82SJiri Benc spin_unlock_bh(&local->sta_lock); 674f0706e82SJiri Benc } 675f0706e82SJiri Benc 676f0706e82SJiri Benc static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid) 677f0706e82SJiri Benc { 678f0706e82SJiri Benc /* 679f0706e82SJiri Benc * This format has ben mandated by the IEEE specifications, 680f0706e82SJiri Benc * so this line may not be changed to use the __clear_bit() format. 681f0706e82SJiri Benc */ 682f0706e82SJiri Benc bss->tim[(aid)/8] &= !(1<<((aid) % 8)); 683f0706e82SJiri Benc } 684f0706e82SJiri Benc 685f0706e82SJiri Benc static inline void bss_tim_clear(struct ieee80211_local *local, 686f0706e82SJiri Benc struct ieee80211_if_ap *bss, int aid) 687f0706e82SJiri Benc { 688f0706e82SJiri Benc spin_lock_bh(&local->sta_lock); 689f0706e82SJiri Benc __bss_tim_clear(bss, aid); 690f0706e82SJiri Benc spin_unlock_bh(&local->sta_lock); 691f0706e82SJiri Benc } 692f0706e82SJiri Benc 693f0706e82SJiri Benc /** 694f0706e82SJiri Benc * ieee80211_is_erp_rate - Check if a rate is an ERP rate 695f0706e82SJiri Benc * @phymode: The PHY-mode for this rate (MODE_IEEE80211...) 696f0706e82SJiri Benc * @rate: Transmission rate to check, in 100 kbps 697f0706e82SJiri Benc * 698f0706e82SJiri Benc * Check if a given rate is an Extended Rate PHY (ERP) rate. 699f0706e82SJiri Benc */ 700f0706e82SJiri Benc static inline int ieee80211_is_erp_rate(int phymode, int rate) 701f0706e82SJiri Benc { 702f0706e82SJiri Benc if (phymode == MODE_IEEE80211G) { 703f0706e82SJiri Benc if (rate != 10 && rate != 20 && 704f0706e82SJiri Benc rate != 55 && rate != 110) 705f0706e82SJiri Benc return 1; 706f0706e82SJiri Benc } 707f0706e82SJiri Benc return 0; 708f0706e82SJiri Benc } 709f0706e82SJiri Benc 710f0706e82SJiri Benc /* ieee80211.c */ 711f0706e82SJiri Benc int ieee80211_hw_config(struct ieee80211_local *local); 712f0706e82SJiri Benc int ieee80211_if_config(struct net_device *dev); 713f0706e82SJiri Benc int ieee80211_if_config_beacon(struct net_device *dev); 714f0706e82SJiri Benc struct ieee80211_key_conf * 715f0706e82SJiri Benc ieee80211_key_data2conf(struct ieee80211_local *local, 716f0706e82SJiri Benc const struct ieee80211_key *data); 717f0706e82SJiri Benc struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, 718f0706e82SJiri Benc int idx, size_t key_len, gfp_t flags); 719f0706e82SJiri Benc void ieee80211_key_free(struct ieee80211_key *key); 720f0706e82SJiri Benc void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb, 721f0706e82SJiri Benc struct ieee80211_rx_status *status, u32 msg_type); 722f0706e82SJiri Benc void ieee80211_prepare_rates(struct ieee80211_local *local, 723f0706e82SJiri Benc struct ieee80211_hw_mode *mode); 724f0706e82SJiri Benc void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); 725f0706e82SJiri Benc int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr); 72640f7cac9SJohannes Berg int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 72740f7cac9SJohannes Berg int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 728f0706e82SJiri Benc void ieee80211_if_setup(struct net_device *dev); 729f0706e82SJiri Benc void ieee80211_if_mgmt_setup(struct net_device *dev); 730f0706e82SJiri Benc int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, 731f0706e82SJiri Benc const char *name); 732f0706e82SJiri Benc struct net_device_stats *ieee80211_dev_stats(struct net_device *dev); 733f0706e82SJiri Benc 734f0706e82SJiri Benc /* ieee80211_ioctl.c */ 735f0706e82SJiri Benc extern const struct iw_handler_def ieee80211_iw_handler_def; 736f0706e82SJiri Benc 737f0706e82SJiri Benc void ieee80211_update_default_wep_only(struct ieee80211_local *local); 738f0706e82SJiri Benc 739f0706e82SJiri Benc 740f0706e82SJiri Benc /* Least common multiple of the used rates (in 100 kbps). This is used to 741f0706e82SJiri Benc * calculate rate_inv values for each rate so that only integers are needed. */ 742f0706e82SJiri Benc #define CHAN_UTIL_RATE_LCM 95040 743f0706e82SJiri Benc /* 1 usec is 1/8 * (95040/10) = 1188 */ 744f0706e82SJiri Benc #define CHAN_UTIL_PER_USEC 1188 745f0706e82SJiri Benc /* Amount of bits to shift the result right to scale the total utilization 746f0706e82SJiri Benc * to values that will not wrap around 32-bit integers. */ 747f0706e82SJiri Benc #define CHAN_UTIL_SHIFT 9 748f0706e82SJiri Benc /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1): 749f0706e82SJiri Benc * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the 750f0706e82SJiri Benc * raw value with about 23 should give utilization in 10th of a percentage 751f0706e82SJiri Benc * (1/1000). However, utilization is only estimated and not all intervals 752f0706e82SJiri Benc * between frames etc. are calculated. 18 seems to give numbers that are closer 753f0706e82SJiri Benc * to the real maximum. */ 754f0706e82SJiri Benc #define CHAN_UTIL_PER_10MS 18 755f0706e82SJiri Benc #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC) 756f0706e82SJiri Benc #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC) 757f0706e82SJiri Benc 758f0706e82SJiri Benc 759f0706e82SJiri Benc /* ieee80211_ioctl.c */ 760f0706e82SJiri Benc int ieee80211_set_compression(struct ieee80211_local *local, 761f0706e82SJiri Benc struct net_device *dev, struct sta_info *sta); 762f0706e82SJiri Benc int ieee80211_init_client(struct net_device *dev); 763f0706e82SJiri Benc int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq); 764f0706e82SJiri Benc /* ieee80211_sta.c */ 765f0706e82SJiri Benc void ieee80211_sta_timer(unsigned long data); 766f0706e82SJiri Benc void ieee80211_sta_work(struct work_struct *work); 767f0706e82SJiri Benc void ieee80211_sta_scan_work(struct work_struct *work); 768f0706e82SJiri Benc void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, 769f0706e82SJiri Benc struct ieee80211_rx_status *rx_status); 770f0706e82SJiri Benc int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len); 771f0706e82SJiri Benc int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len); 772f0706e82SJiri Benc int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid); 773f0706e82SJiri Benc int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len); 774f0706e82SJiri Benc void ieee80211_sta_req_auth(struct net_device *dev, 775f0706e82SJiri Benc struct ieee80211_if_sta *ifsta); 776f0706e82SJiri Benc int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); 777f0706e82SJiri Benc void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, 778f0706e82SJiri Benc struct ieee80211_rx_status *rx_status); 779f0706e82SJiri Benc void ieee80211_rx_bss_list_init(struct net_device *dev); 780f0706e82SJiri Benc void ieee80211_rx_bss_list_deinit(struct net_device *dev); 781f0706e82SJiri Benc int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); 782f0706e82SJiri Benc struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, 783f0706e82SJiri Benc struct sk_buff *skb, u8 *bssid, 784f0706e82SJiri Benc u8 *addr); 785f0706e82SJiri Benc int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason); 786f0706e82SJiri Benc int ieee80211_sta_disassociate(struct net_device *dev, u16 reason); 787f0706e82SJiri Benc 788f0706e82SJiri Benc /* ieee80211_iface.c */ 789f0706e82SJiri Benc int ieee80211_if_add(struct net_device *dev, const char *name, 790f0706e82SJiri Benc struct net_device **new_dev, int type); 791f0706e82SJiri Benc void ieee80211_if_set_type(struct net_device *dev, int type); 792f0706e82SJiri Benc void ieee80211_if_reinit(struct net_device *dev); 793f0706e82SJiri Benc void __ieee80211_if_del(struct ieee80211_local *local, 794f0706e82SJiri Benc struct ieee80211_sub_if_data *sdata); 795f0706e82SJiri Benc int ieee80211_if_remove(struct net_device *dev, const char *name, int id); 796f0706e82SJiri Benc void ieee80211_if_free(struct net_device *dev); 797f0706e82SJiri Benc void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); 798f0706e82SJiri Benc int ieee80211_if_add_mgmt(struct ieee80211_local *local); 799f0706e82SJiri Benc void ieee80211_if_del_mgmt(struct ieee80211_local *local); 800f0706e82SJiri Benc 801f0706e82SJiri Benc /* for wiphy privid */ 802f0706e82SJiri Benc extern void *mac80211_wiphy_privid; 803f0706e82SJiri Benc 804f0706e82SJiri Benc #endif /* IEEE80211_I_H */ 805