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> 24571ecf67SJohannes Berg #include <linux/etherdevice.h> 25f0706e82SJiri Benc #include <net/wireless.h> 26f0706e82SJiri Benc #include "ieee80211_key.h" 27f0706e82SJiri Benc #include "sta_info.h" 28f0706e82SJiri Benc 29f0706e82SJiri Benc /* ieee80211.o internal definitions, etc. These are not included into 30f0706e82SJiri Benc * low-level drivers. */ 31f0706e82SJiri Benc 32f0706e82SJiri Benc #ifndef ETH_P_PAE 33f0706e82SJiri Benc #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ 34f0706e82SJiri Benc #endif /* ETH_P_PAE */ 35f0706e82SJiri Benc 36f0706e82SJiri Benc #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) 37f0706e82SJiri Benc 38f0706e82SJiri Benc struct ieee80211_local; 39f0706e82SJiri Benc 40f0706e82SJiri Benc #define BIT(x) (1 << (x)) 41f0706e82SJiri Benc 42f0706e82SJiri Benc #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3) 43f0706e82SJiri Benc 44f0706e82SJiri Benc /* Maximum number of broadcast/multicast frames to buffer when some of the 45f0706e82SJiri Benc * associated stations are using power saving. */ 46f0706e82SJiri Benc #define AP_MAX_BC_BUFFER 128 47f0706e82SJiri Benc 48f0706e82SJiri Benc /* Maximum number of frames buffered to all STAs, including multicast frames. 49f0706e82SJiri Benc * Note: increasing this limit increases the potential memory requirement. Each 50f0706e82SJiri Benc * frame can be up to about 2 kB long. */ 51f0706e82SJiri Benc #define TOTAL_MAX_TX_BUFFER 512 52f0706e82SJiri Benc 53f0706e82SJiri Benc /* Required encryption head and tailroom */ 54f0706e82SJiri Benc #define IEEE80211_ENCRYPT_HEADROOM 8 55f0706e82SJiri Benc #define IEEE80211_ENCRYPT_TAILROOM 12 56f0706e82SJiri Benc 57f0706e82SJiri Benc /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent 58f0706e82SJiri Benc * reception of at least three fragmented frames. This limit can be increased 59f0706e82SJiri Benc * by changing this define, at the cost of slower frame reassembly and 60f0706e82SJiri Benc * increased memory use (about 2 kB of RAM per entry). */ 61f0706e82SJiri Benc #define IEEE80211_FRAGMENT_MAX 4 62f0706e82SJiri Benc 63f0706e82SJiri Benc struct ieee80211_fragment_entry { 64f0706e82SJiri Benc unsigned long first_frag_time; 65f0706e82SJiri Benc unsigned int seq; 66f0706e82SJiri Benc unsigned int rx_queue; 67f0706e82SJiri Benc unsigned int last_frag; 68f0706e82SJiri Benc unsigned int extra_len; 69f0706e82SJiri Benc struct sk_buff_head skb_list; 70f0706e82SJiri Benc int ccmp; /* Whether fragments were encrypted with CCMP */ 71f0706e82SJiri Benc u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ 72f0706e82SJiri Benc }; 73f0706e82SJiri Benc 74f0706e82SJiri Benc 75f0706e82SJiri Benc struct ieee80211_sta_bss { 76f0706e82SJiri Benc struct list_head list; 77f0706e82SJiri Benc struct ieee80211_sta_bss *hnext; 78f0706e82SJiri Benc atomic_t users; 79f0706e82SJiri Benc 80f0706e82SJiri Benc u8 bssid[ETH_ALEN]; 81f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 82f0706e82SJiri Benc size_t ssid_len; 83f0706e82SJiri Benc u16 capability; /* host byte order */ 84f0706e82SJiri Benc int hw_mode; 85f0706e82SJiri Benc int channel; 86f0706e82SJiri Benc int freq; 87f0706e82SJiri Benc int rssi, signal, noise; 88f0706e82SJiri Benc u8 *wpa_ie; 89f0706e82SJiri Benc size_t wpa_ie_len; 90f0706e82SJiri Benc u8 *rsn_ie; 91f0706e82SJiri Benc size_t rsn_ie_len; 92f0706e82SJiri Benc u8 *wmm_ie; 93f0706e82SJiri Benc size_t wmm_ie_len; 94f0706e82SJiri Benc #define IEEE80211_MAX_SUPP_RATES 32 95f0706e82SJiri Benc u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 96f0706e82SJiri Benc size_t supp_rates_len; 97f0706e82SJiri Benc int beacon_int; 98f0706e82SJiri Benc u64 timestamp; 99f0706e82SJiri Benc 100f0706e82SJiri Benc int probe_resp; 101f0706e82SJiri Benc unsigned long last_update; 102f0706e82SJiri Benc 1035628221cSDaniel Drake /* during assocation, we save an ERP value from a probe response so 1045628221cSDaniel Drake * that we can feed ERP info to the driver when handling the 1055628221cSDaniel Drake * association completes. these fields probably won't be up-to-date 1065628221cSDaniel Drake * otherwise, you probably don't want to use them. */ 1075628221cSDaniel Drake int has_erp_value; 1085628221cSDaniel Drake u8 erp_value; 109f0706e82SJiri Benc }; 110f0706e82SJiri Benc 111f0706e82SJiri Benc 112f0706e82SJiri Benc typedef enum { 113f0706e82SJiri Benc TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED 114f0706e82SJiri Benc } ieee80211_txrx_result; 115f0706e82SJiri Benc 116f0706e82SJiri Benc struct ieee80211_txrx_data { 117f0706e82SJiri Benc struct sk_buff *skb; 118f0706e82SJiri Benc struct net_device *dev; 119f0706e82SJiri Benc struct ieee80211_local *local; 120f0706e82SJiri Benc struct ieee80211_sub_if_data *sdata; 121f0706e82SJiri Benc struct sta_info *sta; 122f0706e82SJiri Benc u16 fc, ethertype; 123f0706e82SJiri Benc struct ieee80211_key *key; 124f0706e82SJiri Benc unsigned int fragmented:1; /* whether the MSDU was fragmented */ 125f0706e82SJiri Benc union { 126f0706e82SJiri Benc struct { 127f0706e82SJiri Benc struct ieee80211_tx_control *control; 128f0706e82SJiri Benc unsigned int unicast:1; 129f0706e82SJiri Benc unsigned int ps_buffered: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 158*e8bf9649SJiri Slaby /* flags used in struct ieee80211_tx_packet_data.flags */ 159*e8bf9649SJiri Slaby #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0) 160*e8bf9649SJiri Slaby #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1) 161*e8bf9649SJiri Slaby #define IEEE80211_TXPD_REQUEUE BIT(2) 162*e8bf9649SJiri Slaby #define IEEE80211_TXPD_MGMT_IFACE BIT(3) 163f0706e82SJiri Benc /* Stored in sk_buff->cb */ 164f0706e82SJiri Benc struct ieee80211_tx_packet_data { 165f0706e82SJiri Benc int ifindex; 166f0706e82SJiri Benc unsigned long jiffies; 167*e8bf9649SJiri Slaby unsigned int flags; 168*e8bf9649SJiri Slaby u8 queue; 169f0706e82SJiri Benc }; 170f0706e82SJiri Benc 171f0706e82SJiri Benc struct ieee80211_tx_stored_packet { 172f0706e82SJiri Benc struct ieee80211_tx_control control; 173f0706e82SJiri Benc struct sk_buff *skb; 174f0706e82SJiri Benc int num_extra_frag; 175f0706e82SJiri Benc struct sk_buff **extra_frag; 176f0706e82SJiri Benc int last_frag_rateidx; 177f0706e82SJiri Benc int last_frag_hwrate; 178f0706e82SJiri Benc struct ieee80211_rate *last_frag_rate; 179f0706e82SJiri Benc unsigned int last_frag_rate_ctrl_probe:1; 180f0706e82SJiri Benc }; 181f0706e82SJiri Benc 182f0706e82SJiri Benc typedef ieee80211_txrx_result (*ieee80211_tx_handler) 183f0706e82SJiri Benc (struct ieee80211_txrx_data *tx); 184f0706e82SJiri Benc 185f0706e82SJiri Benc typedef ieee80211_txrx_result (*ieee80211_rx_handler) 186f0706e82SJiri Benc (struct ieee80211_txrx_data *rx); 187f0706e82SJiri Benc 188f0706e82SJiri Benc struct ieee80211_if_ap { 189f0706e82SJiri Benc u8 *beacon_head, *beacon_tail; 190f0706e82SJiri Benc int beacon_head_len, beacon_tail_len; 191f0706e82SJiri Benc 192f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 193f0706e82SJiri Benc size_t ssid_len; 194f0706e82SJiri Benc u8 *generic_elem; 195f0706e82SJiri Benc size_t generic_elem_len; 196f0706e82SJiri Benc 197f0706e82SJiri Benc /* yes, this looks ugly, but guarantees that we can later use 198f0706e82SJiri Benc * bitmap_empty :) 199f0706e82SJiri Benc * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */ 200f0706e82SJiri Benc u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; 201f0706e82SJiri Benc atomic_t num_sta_ps; /* number of stations in PS mode */ 202f0706e82SJiri Benc struct sk_buff_head ps_bc_buf; 203f0706e82SJiri Benc int dtim_period, dtim_count; 204f0706e82SJiri Benc int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ 205f0706e82SJiri Benc int max_ratectrl_rateidx; /* max TX rateidx for rate control */ 206f0706e82SJiri Benc int num_beacons; /* number of TXed beacon frames for this BSS */ 207f0706e82SJiri Benc }; 208f0706e82SJiri Benc 209f0706e82SJiri Benc struct ieee80211_if_wds { 210f0706e82SJiri Benc u8 remote_addr[ETH_ALEN]; 211f0706e82SJiri Benc struct sta_info *sta; 212f0706e82SJiri Benc }; 213f0706e82SJiri Benc 214f0706e82SJiri Benc struct ieee80211_if_vlan { 215f0706e82SJiri Benc u8 id; 216f0706e82SJiri Benc }; 217f0706e82SJiri Benc 218f0706e82SJiri Benc struct ieee80211_if_sta { 219f0706e82SJiri Benc enum { 220f0706e82SJiri Benc IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, 221f0706e82SJiri Benc IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, 222f0706e82SJiri Benc IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED 223f0706e82SJiri Benc } state; 224f0706e82SJiri Benc struct timer_list timer; 225f0706e82SJiri Benc struct work_struct work; 226f0706e82SJiri Benc u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; 227f0706e82SJiri Benc u8 ssid[IEEE80211_MAX_SSID_LEN]; 228f0706e82SJiri Benc size_t ssid_len; 229f0706e82SJiri Benc u16 aid; 230f0706e82SJiri Benc u16 ap_capab, capab; 231f0706e82SJiri Benc u8 *extra_ie; /* to be added to the end of AssocReq */ 232f0706e82SJiri Benc size_t extra_ie_len; 233f0706e82SJiri Benc 234f0706e82SJiri Benc /* The last AssocReq/Resp IEs */ 235f0706e82SJiri Benc u8 *assocreq_ies, *assocresp_ies; 236f0706e82SJiri Benc size_t assocreq_ies_len, assocresp_ies_len; 237f0706e82SJiri Benc 238f0706e82SJiri Benc int auth_tries, assoc_tries; 239f0706e82SJiri Benc 240f0706e82SJiri Benc unsigned int ssid_set:1; 241f0706e82SJiri Benc unsigned int bssid_set:1; 242f0706e82SJiri Benc unsigned int prev_bssid_set:1; 243f0706e82SJiri Benc unsigned int authenticated:1; 244f0706e82SJiri Benc unsigned int associated:1; 245f0706e82SJiri Benc unsigned int probereq_poll:1; 246f0706e82SJiri Benc unsigned int create_ibss:1; 247f0706e82SJiri Benc unsigned int mixed_cell:1; 248f0706e82SJiri Benc unsigned int wmm_enabled:1; 249f0706e82SJiri Benc unsigned int auto_ssid_sel:1; 250f0706e82SJiri Benc unsigned int auto_bssid_sel:1; 251f0706e82SJiri Benc unsigned int auto_channel_sel:1; 252f0706e82SJiri Benc #define IEEE80211_STA_REQ_SCAN 0 253f0706e82SJiri Benc #define IEEE80211_STA_REQ_AUTH 1 254f0706e82SJiri Benc #define IEEE80211_STA_REQ_RUN 2 255f0706e82SJiri Benc unsigned long request; 256f0706e82SJiri Benc struct sk_buff_head skb_queue; 257f0706e82SJiri Benc 258808718c1SJohannes Berg int key_management_enabled; 259f0706e82SJiri Benc unsigned long last_probe; 260f0706e82SJiri Benc 261f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_OPEN BIT(0) 262f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) 263f0706e82SJiri Benc #define IEEE80211_AUTH_ALG_LEAP BIT(2) 264f0706e82SJiri Benc unsigned int auth_algs; /* bitfield of allowed auth algs */ 265f0706e82SJiri Benc int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ 266f0706e82SJiri Benc int auth_transaction; 267f0706e82SJiri Benc 268f0706e82SJiri Benc unsigned long ibss_join_req; 269f0706e82SJiri Benc struct sk_buff *probe_resp; /* ProbeResp template for IBSS */ 270f0706e82SJiri Benc u32 supp_rates_bits; 271f0706e82SJiri Benc 272f0706e82SJiri Benc int wmm_last_param_set; 273f0706e82SJiri Benc }; 274f0706e82SJiri Benc 275f0706e82SJiri Benc 276f0706e82SJiri Benc struct ieee80211_sub_if_data { 277f0706e82SJiri Benc struct list_head list; 278f0706e82SJiri Benc unsigned int type; 279f0706e82SJiri Benc 280f0706e82SJiri Benc struct wireless_dev wdev; 281f0706e82SJiri Benc 282f0706e82SJiri Benc struct net_device *dev; 283f0706e82SJiri Benc struct ieee80211_local *local; 284f0706e82SJiri Benc 285f0706e82SJiri Benc int mc_count; 286f0706e82SJiri Benc unsigned int allmulti:1; 287f0706e82SJiri Benc unsigned int promisc:1; 28863fc33ceSDaniel Drake unsigned int use_protection:1; /* CTS protect ERP frames */ 289f0706e82SJiri Benc 2907e9ed188SDaniel Drake /* use short preamble with IEEE 802.11b: this flag is set when the AP 2917e9ed188SDaniel Drake * or beacon generator reports that there are no present stations that 2927e9ed188SDaniel Drake * cannot support short preambles */ 2937e9ed188SDaniel Drake unsigned int short_preamble:1; 2947e9ed188SDaniel Drake 295f0706e82SJiri Benc struct net_device_stats stats; 296f0706e82SJiri Benc int drop_unencrypted; 297f0706e82SJiri Benc int eapol; /* 0 = process EAPOL frames as normal data frames, 298f0706e82SJiri Benc * 1 = send EAPOL frames through wlan#ap to hostapd 299f0706e82SJiri Benc * (default) */ 300f0706e82SJiri Benc int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized 301f0706e82SJiri Benc * port */ 302f0706e82SJiri Benc 303f0706e82SJiri Benc u16 sequence; 304f0706e82SJiri Benc 305f0706e82SJiri Benc /* Fragment table for host-based reassembly */ 306f0706e82SJiri Benc struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; 307f0706e82SJiri Benc unsigned int fragment_next; 308f0706e82SJiri Benc 309f0706e82SJiri Benc #define NUM_DEFAULT_KEYS 4 310f0706e82SJiri Benc struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; 311f0706e82SJiri Benc struct ieee80211_key *default_key; 312f0706e82SJiri Benc 313f0706e82SJiri Benc struct ieee80211_if_ap *bss; /* BSS that this device belongs to */ 314f0706e82SJiri Benc 315f0706e82SJiri Benc union { 316f0706e82SJiri Benc struct ieee80211_if_ap ap; 317f0706e82SJiri Benc struct ieee80211_if_wds wds; 318f0706e82SJiri Benc struct ieee80211_if_vlan vlan; 319f0706e82SJiri Benc struct ieee80211_if_sta sta; 320f0706e82SJiri Benc } u; 321f0706e82SJiri Benc int channel_use; 322f0706e82SJiri Benc int channel_use_raw; 323e9f207f0SJiri Benc 324e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 325e9f207f0SJiri Benc struct dentry *debugfsdir; 326e9f207f0SJiri Benc union { 327e9f207f0SJiri Benc struct { 328e9f207f0SJiri Benc struct dentry *channel_use; 329e9f207f0SJiri Benc struct dentry *drop_unencrypted; 330e9f207f0SJiri Benc struct dentry *eapol; 331e9f207f0SJiri Benc struct dentry *ieee8021_x; 332e9f207f0SJiri Benc struct dentry *state; 333e9f207f0SJiri Benc struct dentry *bssid; 334e9f207f0SJiri Benc struct dentry *prev_bssid; 335e9f207f0SJiri Benc struct dentry *ssid_len; 336e9f207f0SJiri Benc struct dentry *aid; 337e9f207f0SJiri Benc struct dentry *ap_capab; 338e9f207f0SJiri Benc struct dentry *capab; 339e9f207f0SJiri Benc struct dentry *extra_ie_len; 340e9f207f0SJiri Benc struct dentry *auth_tries; 341e9f207f0SJiri Benc struct dentry *assoc_tries; 342e9f207f0SJiri Benc struct dentry *auth_algs; 343e9f207f0SJiri Benc struct dentry *auth_alg; 344e9f207f0SJiri Benc struct dentry *auth_transaction; 345e9f207f0SJiri Benc struct dentry *flags; 346e9f207f0SJiri Benc } sta; 347e9f207f0SJiri Benc struct { 348e9f207f0SJiri Benc struct dentry *channel_use; 349e9f207f0SJiri Benc struct dentry *drop_unencrypted; 350e9f207f0SJiri Benc struct dentry *eapol; 351e9f207f0SJiri Benc struct dentry *ieee8021_x; 352e9f207f0SJiri Benc struct dentry *num_sta_ps; 353e9f207f0SJiri Benc struct dentry *dtim_period; 354e9f207f0SJiri Benc struct dentry *dtim_count; 355e9f207f0SJiri Benc struct dentry *num_beacons; 356e9f207f0SJiri Benc struct dentry *force_unicast_rateidx; 357e9f207f0SJiri Benc struct dentry *max_ratectrl_rateidx; 358e9f207f0SJiri Benc struct dentry *num_buffered_multicast; 359e9f207f0SJiri Benc struct dentry *beacon_head_len; 360e9f207f0SJiri Benc struct dentry *beacon_tail_len; 361e9f207f0SJiri Benc } ap; 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 *peer; 368e9f207f0SJiri Benc } wds; 369e9f207f0SJiri Benc struct { 370e9f207f0SJiri Benc struct dentry *channel_use; 371e9f207f0SJiri Benc struct dentry *drop_unencrypted; 372e9f207f0SJiri Benc struct dentry *eapol; 373e9f207f0SJiri Benc struct dentry *ieee8021_x; 374e9f207f0SJiri Benc struct dentry *vlan_id; 375e9f207f0SJiri Benc } vlan; 376e9f207f0SJiri Benc struct { 377e9f207f0SJiri Benc struct dentry *mode; 378e9f207f0SJiri Benc } monitor; 379e9f207f0SJiri Benc struct dentry *default_key; 380e9f207f0SJiri Benc } debugfs; 381e9f207f0SJiri Benc #endif 382f0706e82SJiri Benc }; 383f0706e82SJiri Benc 384f0706e82SJiri Benc #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) 385f0706e82SJiri Benc 386f0706e82SJiri Benc enum { 387f0706e82SJiri Benc IEEE80211_RX_MSG = 1, 388f0706e82SJiri Benc IEEE80211_TX_STATUS_MSG = 2, 389f0706e82SJiri Benc }; 390f0706e82SJiri Benc 391f0706e82SJiri Benc struct ieee80211_local { 392f0706e82SJiri Benc /* embed the driver visible part. 393f0706e82SJiri Benc * don't cast (use the static inlines below), but we keep 394f0706e82SJiri Benc * it first anyway so they become a no-op */ 395f0706e82SJiri Benc struct ieee80211_hw hw; 396f0706e82SJiri Benc 397f0706e82SJiri Benc const struct ieee80211_ops *ops; 398f0706e82SJiri Benc 399f0706e82SJiri Benc /* List of registered struct ieee80211_hw_mode */ 400f0706e82SJiri Benc struct list_head modes_list; 401f0706e82SJiri Benc 402f0706e82SJiri Benc struct net_device *mdev; /* wmaster# - "master" 802.11 device */ 403f0706e82SJiri Benc struct net_device *apdev; /* wlan#ap - management frames (hostapd) */ 404f0706e82SJiri Benc int open_count; 405f0706e82SJiri Benc int monitors; 406f0706e82SJiri Benc struct iw_statistics wstats; 407f0706e82SJiri Benc u8 wstats_flags; 408b306f453SJohannes Berg int tx_headroom; /* required headroom for hardware/radiotap */ 409f0706e82SJiri Benc 410f0706e82SJiri Benc enum { 411f0706e82SJiri Benc IEEE80211_DEV_UNINITIALIZED = 0, 412f0706e82SJiri Benc IEEE80211_DEV_REGISTERED, 413f0706e82SJiri Benc IEEE80211_DEV_UNREGISTERED, 414f0706e82SJiri Benc } reg_state; 415f0706e82SJiri Benc 416f0706e82SJiri Benc /* Tasklet and skb queue to process calls from IRQ mode. All frames 417f0706e82SJiri Benc * added to skb_queue will be processed, but frames in 418f0706e82SJiri Benc * skb_queue_unreliable may be dropped if the total length of these 419f0706e82SJiri Benc * queues increases over the limit. */ 420f0706e82SJiri Benc #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 421f0706e82SJiri Benc struct tasklet_struct tasklet; 422f0706e82SJiri Benc struct sk_buff_head skb_queue; 423f0706e82SJiri Benc struct sk_buff_head skb_queue_unreliable; 424f0706e82SJiri Benc 425f0706e82SJiri Benc /* Station data structures */ 426be8755e1SMichael Wu rwlock_t sta_lock; /* protects STA data structures */ 427f0706e82SJiri Benc int num_sta; /* number of stations in sta_list */ 428f0706e82SJiri Benc struct list_head sta_list; 429f0706e82SJiri Benc struct sta_info *sta_hash[STA_HASH_SIZE]; 430f0706e82SJiri Benc struct timer_list sta_cleanup; 431f0706e82SJiri Benc 432f0706e82SJiri Benc unsigned long state[NUM_TX_DATA_QUEUES]; 433f0706e82SJiri Benc struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES]; 434f0706e82SJiri Benc struct tasklet_struct tx_pending_tasklet; 435f0706e82SJiri Benc 436f0706e82SJiri Benc int mc_count; /* total count of multicast entries in all interfaces */ 437f0706e82SJiri Benc int iff_allmultis, iff_promiscs; 438f0706e82SJiri Benc /* number of interfaces with corresponding IFF_ flags */ 439f0706e82SJiri Benc 440f0706e82SJiri Benc struct rate_control_ref *rate_ctrl; 441f0706e82SJiri Benc 442f0706e82SJiri Benc int next_mode; /* MODE_IEEE80211* 443f0706e82SJiri Benc * The mode preference for next channel change. This is 444f0706e82SJiri Benc * used to select .11g vs. .11b channels (or 4.9 GHz vs. 445f0706e82SJiri Benc * .11a) when the channel number is not unique. */ 446f0706e82SJiri Benc 447f0706e82SJiri Benc /* Supported and basic rate filters for different modes. These are 448f0706e82SJiri Benc * pointers to -1 terminated lists and rates in 100 kbps units. */ 449f0706e82SJiri Benc int *supp_rates[NUM_IEEE80211_MODES]; 450f0706e82SJiri Benc int *basic_rates[NUM_IEEE80211_MODES]; 451f0706e82SJiri Benc 452f0706e82SJiri Benc int rts_threshold; 453f0706e82SJiri Benc int fragmentation_threshold; 454f0706e82SJiri Benc int short_retry_limit; /* dot11ShortRetryLimit */ 455f0706e82SJiri Benc int long_retry_limit; /* dot11LongRetryLimit */ 456f0706e82SJiri Benc 457f0706e82SJiri Benc struct crypto_blkcipher *wep_tx_tfm; 458f0706e82SJiri Benc struct crypto_blkcipher *wep_rx_tfm; 459f0706e82SJiri Benc u32 wep_iv; 460f0706e82SJiri Benc int key_tx_rx_threshold; /* number of times any key can be used in TX 461f0706e82SJiri Benc * or RX before generating a rekey 462f0706e82SJiri Benc * notification; 0 = notification disabled. */ 463f0706e82SJiri Benc 464f0706e82SJiri Benc int bridge_packets; /* bridge packets between associated stations and 465f0706e82SJiri Benc * deliver multicast frames both back to wireless 466f0706e82SJiri Benc * media and to the local net stack */ 467f0706e82SJiri Benc 468f0706e82SJiri Benc ieee80211_rx_handler *rx_pre_handlers; 469f0706e82SJiri Benc ieee80211_rx_handler *rx_handlers; 470f0706e82SJiri Benc ieee80211_tx_handler *tx_handlers; 471f0706e82SJiri Benc 472f0706e82SJiri Benc rwlock_t sub_if_lock; /* Protects sub_if_list. Cannot be taken under 473f0706e82SJiri Benc * sta_bss_lock or sta_lock. */ 474f0706e82SJiri Benc struct list_head sub_if_list; 475f0706e82SJiri Benc int sta_scanning; 476f0706e82SJiri Benc int scan_channel_idx; 477f0706e82SJiri Benc enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; 478f0706e82SJiri Benc unsigned long last_scan_completed; 479f0706e82SJiri Benc struct delayed_work scan_work; 480f0706e82SJiri Benc struct net_device *scan_dev; 481f0706e82SJiri Benc struct ieee80211_channel *oper_channel, *scan_channel; 482f0706e82SJiri Benc struct ieee80211_hw_mode *oper_hw_mode, *scan_hw_mode; 483f0706e82SJiri Benc u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; 484f0706e82SJiri Benc size_t scan_ssid_len; 485f0706e82SJiri Benc struct list_head sta_bss_list; 486f0706e82SJiri Benc struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE]; 487f0706e82SJiri Benc spinlock_t sta_bss_lock; 488f0706e82SJiri Benc #define IEEE80211_SCAN_MATCH_SSID BIT(0) 489f0706e82SJiri Benc #define IEEE80211_SCAN_WPA_ONLY BIT(1) 490f0706e82SJiri Benc #define IEEE80211_SCAN_EXTRA_INFO BIT(2) 491f0706e82SJiri Benc int scan_flags; 492f0706e82SJiri Benc 493f0706e82SJiri Benc /* SNMP counters */ 494f0706e82SJiri Benc /* dot11CountersTable */ 495f0706e82SJiri Benc u32 dot11TransmittedFragmentCount; 496f0706e82SJiri Benc u32 dot11MulticastTransmittedFrameCount; 497f0706e82SJiri Benc u32 dot11FailedCount; 498f0706e82SJiri Benc u32 dot11RetryCount; 499f0706e82SJiri Benc u32 dot11MultipleRetryCount; 500f0706e82SJiri Benc u32 dot11FrameDuplicateCount; 501f0706e82SJiri Benc u32 dot11ReceivedFragmentCount; 502f0706e82SJiri Benc u32 dot11MulticastReceivedFrameCount; 503f0706e82SJiri Benc u32 dot11TransmittedFrameCount; 504f0706e82SJiri Benc u32 dot11WEPUndecryptableCount; 505f0706e82SJiri Benc 506f0706e82SJiri Benc #ifdef CONFIG_MAC80211_LEDS 507f0706e82SJiri Benc int tx_led_counter, rx_led_counter; 508f0706e82SJiri Benc struct led_trigger *tx_led, *rx_led; 509f0706e82SJiri Benc char tx_led_name[32], rx_led_name[32]; 510f0706e82SJiri Benc #endif 511f0706e82SJiri Benc 512f0706e82SJiri Benc u32 channel_use; 513f0706e82SJiri Benc u32 channel_use_raw; 514f0706e82SJiri Benc 515e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 516e9f207f0SJiri Benc struct work_struct sta_debugfs_add; 517e9f207f0SJiri Benc #endif 518e9f207f0SJiri Benc 519f0706e82SJiri Benc #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 520f0706e82SJiri Benc /* TX/RX handler statistics */ 521f0706e82SJiri Benc unsigned int tx_handlers_drop; 522f0706e82SJiri Benc unsigned int tx_handlers_queued; 523f0706e82SJiri Benc unsigned int tx_handlers_drop_unencrypted; 524f0706e82SJiri Benc unsigned int tx_handlers_drop_fragment; 525f0706e82SJiri Benc unsigned int tx_handlers_drop_wep; 526f0706e82SJiri Benc unsigned int tx_handlers_drop_not_assoc; 527f0706e82SJiri Benc unsigned int tx_handlers_drop_unauth_port; 528f0706e82SJiri Benc unsigned int rx_handlers_drop; 529f0706e82SJiri Benc unsigned int rx_handlers_queued; 530f0706e82SJiri Benc unsigned int rx_handlers_drop_nullfunc; 531f0706e82SJiri Benc unsigned int rx_handlers_drop_defrag; 532f0706e82SJiri Benc unsigned int rx_handlers_drop_short; 533f0706e82SJiri Benc unsigned int rx_handlers_drop_passive_scan; 534f0706e82SJiri Benc unsigned int tx_expand_skb_head; 535f0706e82SJiri Benc unsigned int tx_expand_skb_head_cloned; 536f0706e82SJiri Benc unsigned int rx_expand_skb_head; 537f0706e82SJiri Benc unsigned int rx_expand_skb_head2; 538f0706e82SJiri Benc unsigned int rx_handlers_fragments; 539f0706e82SJiri Benc unsigned int tx_status_drop; 540f0706e82SJiri Benc unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; 541f0706e82SJiri Benc unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; 542f0706e82SJiri Benc #define I802_DEBUG_INC(c) (c)++ 543f0706e82SJiri Benc #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 544f0706e82SJiri Benc #define I802_DEBUG_INC(c) do { } while (0) 545f0706e82SJiri Benc #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 546f0706e82SJiri Benc 547f0706e82SJiri Benc 548f0706e82SJiri Benc int default_wep_only; /* only default WEP keys are used with this 549f0706e82SJiri Benc * interface; this is used to decide when hwaccel 550f0706e82SJiri Benc * can be used with default keys */ 551f0706e82SJiri Benc int total_ps_buffered; /* total number of all buffered unicast and 552f0706e82SJiri Benc * multicast packets for power saving stations 553f0706e82SJiri Benc */ 554f0706e82SJiri Benc int wifi_wme_noack_test; 555f0706e82SJiri Benc unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ 556f0706e82SJiri Benc 557f0706e82SJiri Benc unsigned int enabled_modes; /* bitfield of allowed modes; 558f0706e82SJiri Benc * (1 << MODE_*) */ 559f0706e82SJiri Benc unsigned int hw_modes; /* bitfield of supported hardware modes; 560f0706e82SJiri Benc * (1 << MODE_*) */ 561f0706e82SJiri Benc 562f0706e82SJiri Benc int user_space_mlme; 563e9f207f0SJiri Benc 564e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUGFS 565e9f207f0SJiri Benc struct local_debugfsdentries { 566e9f207f0SJiri Benc struct dentry *channel; 567e9f207f0SJiri Benc struct dentry *frequency; 568e9f207f0SJiri Benc struct dentry *antenna_sel_tx; 569e9f207f0SJiri Benc struct dentry *antenna_sel_rx; 570e9f207f0SJiri Benc struct dentry *bridge_packets; 571e9f207f0SJiri Benc struct dentry *key_tx_rx_threshold; 572e9f207f0SJiri Benc struct dentry *rts_threshold; 573e9f207f0SJiri Benc struct dentry *fragmentation_threshold; 574e9f207f0SJiri Benc struct dentry *short_retry_limit; 575e9f207f0SJiri Benc struct dentry *long_retry_limit; 576e9f207f0SJiri Benc struct dentry *total_ps_buffered; 577e9f207f0SJiri Benc struct dentry *mode; 578e9f207f0SJiri Benc struct dentry *wep_iv; 579e9f207f0SJiri Benc struct dentry *modes; 580e9f207f0SJiri Benc struct dentry *statistics; 581e9f207f0SJiri Benc struct local_debugfsdentries_statsdentries { 582e9f207f0SJiri Benc struct dentry *transmitted_fragment_count; 583e9f207f0SJiri Benc struct dentry *multicast_transmitted_frame_count; 584e9f207f0SJiri Benc struct dentry *failed_count; 585e9f207f0SJiri Benc struct dentry *retry_count; 586e9f207f0SJiri Benc struct dentry *multiple_retry_count; 587e9f207f0SJiri Benc struct dentry *frame_duplicate_count; 588e9f207f0SJiri Benc struct dentry *received_fragment_count; 589e9f207f0SJiri Benc struct dentry *multicast_received_frame_count; 590e9f207f0SJiri Benc struct dentry *transmitted_frame_count; 591e9f207f0SJiri Benc struct dentry *wep_undecryptable_count; 592e9f207f0SJiri Benc struct dentry *num_scans; 593e9f207f0SJiri Benc #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 594e9f207f0SJiri Benc struct dentry *tx_handlers_drop; 595e9f207f0SJiri Benc struct dentry *tx_handlers_queued; 596e9f207f0SJiri Benc struct dentry *tx_handlers_drop_unencrypted; 597e9f207f0SJiri Benc struct dentry *tx_handlers_drop_fragment; 598e9f207f0SJiri Benc struct dentry *tx_handlers_drop_wep; 599e9f207f0SJiri Benc struct dentry *tx_handlers_drop_not_assoc; 600e9f207f0SJiri Benc struct dentry *tx_handlers_drop_unauth_port; 601e9f207f0SJiri Benc struct dentry *rx_handlers_drop; 602e9f207f0SJiri Benc struct dentry *rx_handlers_queued; 603e9f207f0SJiri Benc struct dentry *rx_handlers_drop_nullfunc; 604e9f207f0SJiri Benc struct dentry *rx_handlers_drop_defrag; 605e9f207f0SJiri Benc struct dentry *rx_handlers_drop_short; 606e9f207f0SJiri Benc struct dentry *rx_handlers_drop_passive_scan; 607e9f207f0SJiri Benc struct dentry *tx_expand_skb_head; 608e9f207f0SJiri Benc struct dentry *tx_expand_skb_head_cloned; 609e9f207f0SJiri Benc struct dentry *rx_expand_skb_head; 610e9f207f0SJiri Benc struct dentry *rx_expand_skb_head2; 611e9f207f0SJiri Benc struct dentry *rx_handlers_fragments; 612e9f207f0SJiri Benc struct dentry *tx_status_drop; 613e9f207f0SJiri Benc struct dentry *wme_tx_queue; 614e9f207f0SJiri Benc struct dentry *wme_rx_queue; 615e9f207f0SJiri Benc #endif 616e9f207f0SJiri Benc struct dentry *dot11ACKFailureCount; 617e9f207f0SJiri Benc struct dentry *dot11RTSFailureCount; 618e9f207f0SJiri Benc struct dentry *dot11FCSErrorCount; 619e9f207f0SJiri Benc struct dentry *dot11RTSSuccessCount; 620e9f207f0SJiri Benc } stats; 621e9f207f0SJiri Benc struct dentry *stations; 622e9f207f0SJiri Benc struct dentry *keys; 623e9f207f0SJiri Benc } debugfs; 624e9f207f0SJiri Benc #endif 625f0706e82SJiri Benc }; 626f0706e82SJiri Benc 627f0706e82SJiri Benc static inline struct ieee80211_local *hw_to_local( 628f0706e82SJiri Benc struct ieee80211_hw *hw) 629f0706e82SJiri Benc { 630f0706e82SJiri Benc return container_of(hw, struct ieee80211_local, hw); 631f0706e82SJiri Benc } 632f0706e82SJiri Benc 633f0706e82SJiri Benc static inline struct ieee80211_hw *local_to_hw( 634f0706e82SJiri Benc struct ieee80211_local *local) 635f0706e82SJiri Benc { 636f0706e82SJiri Benc return &local->hw; 637f0706e82SJiri Benc } 638f0706e82SJiri Benc 639f0706e82SJiri Benc enum ieee80211_link_state_t { 640f0706e82SJiri Benc IEEE80211_LINK_STATE_XOFF = 0, 641f0706e82SJiri Benc IEEE80211_LINK_STATE_PENDING, 642f0706e82SJiri Benc }; 643f0706e82SJiri Benc 644f0706e82SJiri Benc struct sta_attribute { 645f0706e82SJiri Benc struct attribute attr; 646f0706e82SJiri Benc ssize_t (*show)(const struct sta_info *, char *buf); 647f0706e82SJiri Benc ssize_t (*store)(struct sta_info *, const char *buf, size_t count); 648f0706e82SJiri Benc }; 649f0706e82SJiri Benc 650f0706e82SJiri Benc static inline void __bss_tim_set(struct ieee80211_if_ap *bss, int aid) 651f0706e82SJiri Benc { 652f0706e82SJiri Benc /* 653f0706e82SJiri Benc * This format has ben mandated by the IEEE specifications, 654f0706e82SJiri Benc * so this line may not be changed to use the __set_bit() format. 655f0706e82SJiri Benc */ 656f0706e82SJiri Benc bss->tim[(aid)/8] |= 1<<((aid) % 8); 657f0706e82SJiri Benc } 658f0706e82SJiri Benc 659f0706e82SJiri Benc static inline void bss_tim_set(struct ieee80211_local *local, 660f0706e82SJiri Benc struct ieee80211_if_ap *bss, int aid) 661f0706e82SJiri Benc { 662be8755e1SMichael Wu read_lock_bh(&local->sta_lock); 663f0706e82SJiri Benc __bss_tim_set(bss, aid); 664be8755e1SMichael Wu read_unlock_bh(&local->sta_lock); 665f0706e82SJiri Benc } 666f0706e82SJiri Benc 667f0706e82SJiri Benc static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid) 668f0706e82SJiri Benc { 669f0706e82SJiri Benc /* 670f0706e82SJiri Benc * This format has ben mandated by the IEEE specifications, 671f0706e82SJiri Benc * so this line may not be changed to use the __clear_bit() format. 672f0706e82SJiri Benc */ 673f0706e82SJiri Benc bss->tim[(aid)/8] &= !(1<<((aid) % 8)); 674f0706e82SJiri Benc } 675f0706e82SJiri Benc 676f0706e82SJiri Benc static inline void bss_tim_clear(struct ieee80211_local *local, 677f0706e82SJiri Benc struct ieee80211_if_ap *bss, int aid) 678f0706e82SJiri Benc { 679be8755e1SMichael Wu read_lock_bh(&local->sta_lock); 680f0706e82SJiri Benc __bss_tim_clear(bss, aid); 681be8755e1SMichael Wu read_unlock_bh(&local->sta_lock); 682f0706e82SJiri Benc } 683f0706e82SJiri Benc 684f0706e82SJiri Benc /** 685f0706e82SJiri Benc * ieee80211_is_erp_rate - Check if a rate is an ERP rate 686f0706e82SJiri Benc * @phymode: The PHY-mode for this rate (MODE_IEEE80211...) 687f0706e82SJiri Benc * @rate: Transmission rate to check, in 100 kbps 688f0706e82SJiri Benc * 689f0706e82SJiri Benc * Check if a given rate is an Extended Rate PHY (ERP) rate. 690f0706e82SJiri Benc */ 691f0706e82SJiri Benc static inline int ieee80211_is_erp_rate(int phymode, int rate) 692f0706e82SJiri Benc { 693f0706e82SJiri Benc if (phymode == MODE_IEEE80211G) { 694f0706e82SJiri Benc if (rate != 10 && rate != 20 && 695f0706e82SJiri Benc rate != 55 && rate != 110) 696f0706e82SJiri Benc return 1; 697f0706e82SJiri Benc } 698f0706e82SJiri Benc return 0; 699f0706e82SJiri Benc } 700f0706e82SJiri Benc 701571ecf67SJohannes Berg static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) 702571ecf67SJohannes Berg { 703571ecf67SJohannes Berg return compare_ether_addr(raddr, addr) == 0 || 704571ecf67SJohannes Berg is_broadcast_ether_addr(raddr); 705571ecf67SJohannes Berg } 706571ecf67SJohannes Berg 707571ecf67SJohannes Berg 708f0706e82SJiri Benc /* ieee80211.c */ 709f0706e82SJiri Benc int ieee80211_hw_config(struct ieee80211_local *local); 710f0706e82SJiri Benc int ieee80211_if_config(struct net_device *dev); 711f0706e82SJiri Benc int ieee80211_if_config_beacon(struct net_device *dev); 712f0706e82SJiri Benc void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb, 713f0706e82SJiri Benc struct ieee80211_rx_status *status, u32 msg_type); 714f0706e82SJiri Benc void ieee80211_prepare_rates(struct ieee80211_local *local, 715f0706e82SJiri Benc struct ieee80211_hw_mode *mode); 716f0706e82SJiri Benc void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); 717f0706e82SJiri Benc int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr); 718f0706e82SJiri Benc void ieee80211_if_setup(struct net_device *dev); 719f0706e82SJiri Benc void ieee80211_if_mgmt_setup(struct net_device *dev); 720f0706e82SJiri Benc struct net_device_stats *ieee80211_dev_stats(struct net_device *dev); 721571ecf67SJohannes Berg struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local, 722571ecf67SJohannes Berg int phymode, int hwrate); 723571ecf67SJohannes Berg void ieee80211_key_threshold_notify(struct net_device *dev, 724571ecf67SJohannes Berg struct ieee80211_key *key, 725571ecf67SJohannes Berg struct sta_info *sta); 726f0706e82SJiri Benc 727f0706e82SJiri Benc /* ieee80211_ioctl.c */ 728f0706e82SJiri Benc extern const struct iw_handler_def ieee80211_iw_handler_def; 729f0706e82SJiri Benc 730f0706e82SJiri Benc void ieee80211_update_default_wep_only(struct ieee80211_local *local); 731f0706e82SJiri Benc 732f0706e82SJiri Benc 733f0706e82SJiri Benc /* Least common multiple of the used rates (in 100 kbps). This is used to 734f0706e82SJiri Benc * calculate rate_inv values for each rate so that only integers are needed. */ 735f0706e82SJiri Benc #define CHAN_UTIL_RATE_LCM 95040 736f0706e82SJiri Benc /* 1 usec is 1/8 * (95040/10) = 1188 */ 737f0706e82SJiri Benc #define CHAN_UTIL_PER_USEC 1188 738f0706e82SJiri Benc /* Amount of bits to shift the result right to scale the total utilization 739f0706e82SJiri Benc * to values that will not wrap around 32-bit integers. */ 740f0706e82SJiri Benc #define CHAN_UTIL_SHIFT 9 741f0706e82SJiri Benc /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1): 742f0706e82SJiri Benc * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the 743f0706e82SJiri Benc * raw value with about 23 should give utilization in 10th of a percentage 744f0706e82SJiri Benc * (1/1000). However, utilization is only estimated and not all intervals 745f0706e82SJiri Benc * between frames etc. are calculated. 18 seems to give numbers that are closer 746f0706e82SJiri Benc * to the real maximum. */ 747f0706e82SJiri Benc #define CHAN_UTIL_PER_10MS 18 748f0706e82SJiri Benc #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC) 749f0706e82SJiri Benc #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC) 750f0706e82SJiri Benc 751f0706e82SJiri Benc 752f0706e82SJiri Benc /* ieee80211_ioctl.c */ 753f0706e82SJiri Benc int ieee80211_set_compression(struct ieee80211_local *local, 754f0706e82SJiri Benc struct net_device *dev, struct sta_info *sta); 755f0706e82SJiri Benc int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq); 756f0706e82SJiri Benc /* ieee80211_sta.c */ 757f0706e82SJiri Benc void ieee80211_sta_timer(unsigned long data); 758f0706e82SJiri Benc void ieee80211_sta_work(struct work_struct *work); 759f0706e82SJiri Benc void ieee80211_sta_scan_work(struct work_struct *work); 760f0706e82SJiri Benc void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, 761f0706e82SJiri Benc struct ieee80211_rx_status *rx_status); 762f0706e82SJiri Benc int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len); 763f0706e82SJiri Benc int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len); 764f0706e82SJiri Benc int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid); 765f0706e82SJiri Benc int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len); 766f0706e82SJiri Benc void ieee80211_sta_req_auth(struct net_device *dev, 767f0706e82SJiri Benc struct ieee80211_if_sta *ifsta); 768f0706e82SJiri Benc int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); 769f0706e82SJiri Benc void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, 770f0706e82SJiri Benc struct ieee80211_rx_status *rx_status); 771f0706e82SJiri Benc void ieee80211_rx_bss_list_init(struct net_device *dev); 772f0706e82SJiri Benc void ieee80211_rx_bss_list_deinit(struct net_device *dev); 773f0706e82SJiri Benc int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); 774f0706e82SJiri Benc struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, 775f0706e82SJiri Benc struct sk_buff *skb, u8 *bssid, 776f0706e82SJiri Benc u8 *addr); 777f0706e82SJiri Benc int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason); 778f0706e82SJiri Benc int ieee80211_sta_disassociate(struct net_device *dev, u16 reason); 779d9430a32SDaniel Drake void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes); 780d9430a32SDaniel Drake void ieee80211_reset_erp_info(struct net_device *dev); 781f0706e82SJiri Benc 782f0706e82SJiri Benc /* ieee80211_iface.c */ 783f0706e82SJiri Benc int ieee80211_if_add(struct net_device *dev, const char *name, 784f0706e82SJiri Benc struct net_device **new_dev, int type); 785f0706e82SJiri Benc void ieee80211_if_set_type(struct net_device *dev, int type); 786f0706e82SJiri Benc void ieee80211_if_reinit(struct net_device *dev); 787f0706e82SJiri Benc void __ieee80211_if_del(struct ieee80211_local *local, 788f0706e82SJiri Benc struct ieee80211_sub_if_data *sdata); 789f0706e82SJiri Benc int ieee80211_if_remove(struct net_device *dev, const char *name, int id); 790f0706e82SJiri Benc void ieee80211_if_free(struct net_device *dev); 791f0706e82SJiri Benc void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); 792f0706e82SJiri Benc int ieee80211_if_add_mgmt(struct ieee80211_local *local); 793f0706e82SJiri Benc void ieee80211_if_del_mgmt(struct ieee80211_local *local); 794f0706e82SJiri Benc 795fd8bacc9SDaniel Drake /* regdomain.c */ 796fd8bacc9SDaniel Drake void ieee80211_regdomain_init(void); 797fd8bacc9SDaniel Drake void ieee80211_set_default_regdomain(struct ieee80211_hw_mode *mode); 798fd8bacc9SDaniel Drake 799571ecf67SJohannes Berg /* rx handling */ 800571ecf67SJohannes Berg extern ieee80211_rx_handler ieee80211_rx_pre_handlers[]; 801571ecf67SJohannes Berg extern ieee80211_rx_handler ieee80211_rx_handlers[]; 802571ecf67SJohannes Berg 803e2ebc74dSJohannes Berg /* tx handling */ 804e2ebc74dSJohannes Berg extern ieee80211_tx_handler ieee80211_tx_handlers[]; 805e2ebc74dSJohannes Berg void ieee80211_clear_tx_pending(struct ieee80211_local *local); 806e2ebc74dSJohannes Berg void ieee80211_tx_pending(unsigned long data); 807e2ebc74dSJohannes Berg int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev); 808e2ebc74dSJohannes Berg int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); 809e2ebc74dSJohannes Berg int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); 810e2ebc74dSJohannes Berg int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev); 811e2ebc74dSJohannes Berg 8121f5a7e47SJohannes Berg /* key handling */ 8131f5a7e47SJohannes Berg struct ieee80211_key_conf * 8141f5a7e47SJohannes Berg ieee80211_key_data2conf(struct ieee80211_local *local, 8151f5a7e47SJohannes Berg const struct ieee80211_key *data); 8161f5a7e47SJohannes Berg struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, 8171f5a7e47SJohannes Berg int idx, size_t key_len, gfp_t flags); 8181f5a7e47SJohannes Berg void ieee80211_key_free(struct ieee80211_key *key); 8191f5a7e47SJohannes Berg 820c2d1560aSJohannes Berg /* utility functions/constants */ 821c2d1560aSJohannes Berg extern void *mac80211_wiphy_privid; /* for wiphy privid */ 822c2d1560aSJohannes Berg extern const unsigned char rfc1042_header[6]; 823c2d1560aSJohannes Berg extern const unsigned char bridge_tunnel_header[6]; 824c2d1560aSJohannes Berg u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len); 825c2d1560aSJohannes Berg int ieee80211_is_eapol(const struct sk_buff *skb); 826c2d1560aSJohannes Berg int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, 827c2d1560aSJohannes Berg int rate, int erp, int short_preamble); 828eb063c17SJohannes Berg void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx, 829eb063c17SJohannes Berg struct ieee80211_hdr *hdr); 830f0706e82SJiri Benc 831f0706e82SJiri Benc #endif /* IEEE80211_I_H */ 832