diff options
Diffstat (limited to 'target/linux/package/ieee80211-dscape/src/ieee80211_i.h')
| -rw-r--r-- | target/linux/package/ieee80211-dscape/src/ieee80211_i.h | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/target/linux/package/ieee80211-dscape/src/ieee80211_i.h b/target/linux/package/ieee80211-dscape/src/ieee80211_i.h new file mode 100644 index 0000000000..7127f8d67b --- /dev/null +++ b/target/linux/package/ieee80211-dscape/src/ieee80211_i.h @@ -0,0 +1,571 @@ +/* + * Copyright 2002-2005, Instant802 Networks, Inc. + * Copyright 2005, Devicescape Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef IEEE80211_I_H +#define IEEE80211_I_H + +/* ieee80211.o internal definitions, etc. These are not included into + * low-level drivers. */ + +#ifndef ETH_P_PAE +#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ +#endif /* ETH_P_PAE */ + +#define IEEE80211_MAX_SSID_LEN 32 + +struct ieee80211_local; + +#include "ieee80211_key.h" +#include "sta_info.h" + +#define BIT(x) (1 << (x)) + +#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3) + + +/* Maximum number of broadcast/multicast frames to buffer when some of the + * associated stations are using power saving. */ +#define AP_MAX_BC_BUFFER 128 + +/* Maximum number of frames buffered to all STAs, including multicast frames. + * Note: increasing this limit increases the potential memory requirement. Each + * frame can be up to about 2 kB long. */ +#define TOTAL_MAX_TX_BUFFER 512 + + +#define MAC2STR(a) ((a)[0] & 0xff), ((a)[1] & 0xff), ((a)[2] & 0xff), \ + ((a)[3] & 0xff), ((a)[4] & 0xff), ((a)[5] & 0xff) +#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x" + +#define MULTICAST_ADDR(a) ((a)[0] & 0x01) + + +/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent + * reception of at least three fragmented frames. This limit can be increased + * by changing this define, at the cost of slower frame reassembly and + * increased memory use (about 2 kB of RAM per entry). */ +#define IEEE80211_FRAGMENT_MAX 4 + +struct ieee80211_fragment_entry { + unsigned long first_frag_time; + unsigned int seq; + unsigned int rx_queue; + unsigned int last_frag; + struct sk_buff *skb; + int ccmp; /* Whether fragments were encrypted with CCMP */ + u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ +}; + + +struct ieee80211_sta_bss { + struct list_head list; + struct ieee80211_sta_bss *hnext; + atomic_t users; + + u8 bssid[ETH_ALEN]; + u8 ssid[IEEE80211_MAX_SSID_LEN]; + size_t ssid_len; + u16 capability; /* host byte order */ + int hw_mode; + int channel; + int freq; + int rssi; + u8 *wpa_ie; + size_t wpa_ie_len; + u8 *rsn_ie; + size_t rsn_ie_len; + u8 *wmm_ie; + size_t wmm_ie_len; +#define IEEE80211_MAX_SUPP_RATES 32 + u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; + size_t supp_rates_len; + int beacon_int; + u64 timestamp; + + int probe_resp; + unsigned long last_update; + +}; + + +typedef enum { + TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED +} ieee80211_txrx_result; + +struct ieee80211_txrx_data { + struct sk_buff *skb; + struct net_device *dev; + struct ieee80211_local *local; + struct ieee80211_sub_if_data *sdata; + struct sta_info *sta; + u16 fc, ethertype; + struct ieee80211_key *key; + unsigned int fragmented:1; /* whether the MSDU was fragmented */ + union { + struct { + struct ieee80211_tx_control *control; + int unicast:1; + int ps_buffered:1; + int short_preamble:1; + int probe_last_frag:1; + struct ieee80211_rate *rate; + /* use this rate (if set) for last fragment; rate can + * be set to lower rate for the first fragments, e.g., + * when using CTS protection with IEEE 802.11g. */ + struct ieee80211_rate *last_frag_rate; + int last_frag_rateidx; + int mgmt_interface; + + /* Extra fragments (in addition to the first fragment + * in skb) */ + int num_extra_frag; + struct sk_buff **extra_frag; + } tx; + struct { + struct ieee80211_rx_status *status; + int sent_ps_buffered; + int queue; + } rx; + } u; +#ifdef CONFIG_HOSTAPD_WPA_TESTING + int wpa_test; +#endif /* CONFIG_HOSTAPD_WPA_TESTING */ +}; + +struct ieee80211_passive_scan { + unsigned int in_scan:1; /* this must be cleared before calling + * netif_oper(WAKEUP) */ + unsigned int our_mode_only:1; /* only scan our physical mode a/b/g/etc + */ + int interval; /* time in seconds between scans */ + int time; /* time in microseconds to scan for */ + int channel; /* channel to be scanned */ + int tries; + + int mode_idx; + int chan_idx; + + int freq; + int rx_packets; + int rx_beacon; + int txrx_count; + + struct timer_list timer; + + struct sk_buff *skb; /* skb to transmit before changing channels, + * maybe null for none */ + struct ieee80211_tx_control tx_control; + + unsigned int num_scans; +}; + +typedef ieee80211_txrx_result (*ieee80211_tx_handler) +(struct ieee80211_txrx_data *tx); + +typedef ieee80211_txrx_result (*ieee80211_rx_handler) +(struct ieee80211_txrx_data *rx); + +struct ieee80211_if_norm { + u8 *beacon_head, *beacon_tail; + int beacon_head_len, beacon_tail_len; + + /* TODO: sta_aid could be replaced by 2008-bit large bitfield of + * that could be used in TIM element generation. This would also + * make TIM element generation a bit faster. */ + /* AID mapping to station data. NULL, if AID is free. AID is in the + * range 1..2007 and sta_aid[i] corresponds to AID i+1. */ + struct sta_info *sta_aid[MAX_AID_TABLE_SIZE]; + int max_aid; /* largest aid currently in use */ + atomic_t num_sta_ps; /* number of stations in PS mode */ + struct sk_buff_head ps_bc_buf; + int dtim_period, dtim_count; + int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ + int max_ratectrl_rateidx; /* max TX rateidx for rate control */ + int num_beacons; /* number of TXed beacon frames for this BSS */ +}; + +struct ieee80211_if_wds { + u8 remote_addr[ETH_ALEN]; + struct sta_info *sta; +}; + +struct ieee80211_if_vlan { + u8 id; +}; + +struct ieee80211_if_sta { + enum { + IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, + IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, + IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED + } state; + struct timer_list timer; + u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; + u8 ssid[IEEE80211_MAX_SSID_LEN]; + size_t ssid_len; + u16 aid; + u16 ap_capab, capab; + u8 *extra_ie; /* to be added to the end of AssocReq */ + size_t extra_ie_len; + + /* The last AssocReq/Resp IEs */ + u8 *assocreq_ies, *assocresp_ies; + size_t assocreq_ies_len, assocresp_ies_len; + + int auth_tries, assoc_tries; + + int ssid_set:1; + int bssid_set:1; + int prev_bssid_set:1; + int authenticated:1; + int associated:1; + int probereq_poll:1; + int use_protection:1; + int create_ibss:1; + int mixed_cell:1; + int wmm_enabled:1; + + int key_mgmt; + unsigned long last_probe; + +#define IEEE80211_AUTH_ALG_OPEN BIT(0) +#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) +#define IEEE80211_AUTH_ALG_LEAP BIT(2) + unsigned int auth_algs; /* bitfield of allowed auth algs */ + int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ + int auth_transaction; + + unsigned long ibss_join_req; + struct sk_buff *probe_resp; /* ProbeResp template for IBSS */ + u32 supp_rates_bits; + + int wmm_last_param_set; +}; + + +#define IEEE80211_SUB_IF_TYPE_NORM 0x00000000 +#define IEEE80211_SUB_IF_TYPE_MGMT 0x00000001 +#define IEEE80211_SUB_IF_TYPE_STA 0x00000002 +#define IEEE80211_SUB_IF_TYPE_WDS 0x5A580211 +#define IEEE80211_SUB_IF_TYPE_VLAN 0x00080211 + +struct ieee80211_sub_if_data { + struct list_head list; + unsigned int type; + + struct net_device *dev; + struct net_device *master; + struct ieee80211_local *local; + + struct net_device_stats stats; + int drop_unencrypted; + int eapol; /* 0 = process EAPOL frames as normal data frames, + * 1 = send EAPOL frames through wlan#ap to hostapd + * (default) */ + int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized + * port */ + +#define NUM_DEFAULT_KEYS 4 + struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; + struct ieee80211_key *default_key; + + struct ieee80211_if_norm *bss; /* BSS that this device belongs to */ + + union { + struct ieee80211_if_norm norm; + struct ieee80211_if_wds wds; + struct ieee80211_if_vlan vlan; + struct ieee80211_if_sta sta; + } u; + int channel_use; + int channel_use_raw; +}; + +#define IEEE80211_DEV_TO_SUB_IF(dev) ((struct ieee80211_sub_if_data *) \ + (((long)dev + sizeof(struct net_device) + 3) & ~3)) + + +struct ieee80211_local { + struct ieee80211_hw *hw; + void *hw_priv; + struct net_device *mdev; /* wlan#.11 - "master" 802.11 device */ + struct net_device *wdev; /* wlan# - default Ethernet (data) devide */ + struct net_device *apdev; /* wlan#ap - management frames (hostapd) */ + int open_count; + struct ieee80211_conf conf; + + /* Tasklet and skb queue to process calls from IRQ mode. All frames + * added to skb_queue will be processed, but frames in + * skb_queue_unreliable may be dropped if the total length of these + * queues increases over the limit. */ +#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 + struct tasklet_struct tasklet; + struct sk_buff_head skb_queue; + struct sk_buff_head skb_queue_unreliable; + enum { + ieee80211_rx_msg = 1, + ieee80211_tx_status_msg = 2 + } ieee80211_msg_enum; + + spinlock_t generic_lock; + /* Station data structures */ + spinlock_t sta_lock; /* mutex for STA data structures */ + int num_sta; /* number of stations in sta_list */ + struct list_head sta_list; + struct sta_info *sta_hash[STA_HASH_SIZE]; + struct timer_list sta_cleanup; + + /* Current rate table. This is a pointer to hw->modes structure. */ + struct ieee80211_rate *curr_rates; + int num_curr_rates; + + void *rate_ctrl_priv; + struct rate_control_ops *rate_ctrl; + + int next_mode; /* MODE_IEEE80211* + * The mode preference for next channel change. This is + * used to select .11g vs. .11b channels (or 4.9 GHz vs. + * .11a) when the channel number is not unique. */ + + /* Supported and basic rate filters for different modes. These are + * pointers to -1 terminated lists and rates in 100 kbps units. */ + int *supp_rates[NUM_IEEE80211_MODES]; + int *basic_rates[NUM_IEEE80211_MODES]; + + int rts_threshold; + int cts_protect_erp_frames; + int fragmentation_threshold; + int short_retry_limit; /* dot11ShortRetryLimit */ + int long_retry_limit; /* dot11LongRetryLimit */ + int short_preamble; /* use short preamble with IEEE 802.11b */ + + u32 wep_iv; + int key_tx_rx_threshold; /* number of times any key can be used in TX + * or RX before generating a rekey + * notification; 0 = notification disabled. */ + + /* Fragment table for host-based reassembly */ + struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; + unsigned int fragment_next; + + int bridge_packets; /* bridge packets between associated stations and + * deliver multicast frames both back to wireless + * media and to the local net stack */ + + struct ieee80211_passive_scan scan; + + + ieee80211_rx_handler *rx_handlers; + ieee80211_tx_handler *tx_handlers; + + spinlock_t sub_if_lock; /* mutex for STA data structures */ + struct list_head sub_if_list; + struct net_device **bss_devs; /* pointer to IF_TYPE_NORM devices for + * quick access to BSS data */ + int bss_dev_count; /* number of used entries in bss_devs; note: the + * total size of bss_devs array is stored in + * conf.bss_count */ + struct net_device **sta_devs; /* pointer to IF_TYPE_STA devices */ + int sta_dev_count; /* number of used entries in sta_devs */ + int sta_scanning; + int scan_hw_mode_idx; + int scan_channel_idx; + enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; + unsigned long last_scan_completed; + struct timer_list scan_timer; + int scan_oper_channel; + int scan_oper_channel_val; + int scan_oper_power_level; + int scan_oper_freq; + int scan_oper_phymode; + int scan_oper_antenna_max; + u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; + size_t scan_ssid_len; + int scan_skip_11b; + struct list_head sta_bss_list; + struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE]; + spinlock_t sta_bss_lock; +#define IEEE80211_SCAN_MATCH_SSID BIT(0) +#define IEEE80211_SCAN_WPA_ONLY BIT(1) +#define IEEE80211_SCAN_EXTRA_INFO BIT(2) + int scan_flags; + +#ifdef CONFIG_HOSTAPD_WPA_TESTING + u32 wpa_trigger; +#endif /* CONFIG_HOSTAPD_WPA_TESTING */ + /* SNMP counters */ + /* dot11CountersTable */ + u32 dot11TransmittedFragmentCount; + u32 dot11MulticastTransmittedFrameCount; + u32 dot11FailedCount; + u32 dot11RetryCount; + u32 dot11MultipleRetryCount; + u32 dot11FrameDuplicateCount; + u32 dot11ReceivedFragmentCount; + u32 dot11MulticastReceivedFrameCount; + u32 dot11TransmittedFrameCount; + u32 dot11WEPUndecryptableCount; + + int tx_led_counter; + + u32 channel_use; + u32 channel_use_raw; + u32 stat_time; + struct timer_list stat_timer; + + u8 bssid[ETH_ALEN]; /* BSSID for STA modes (Adhoc/Managed) */ + struct timer_list rate_limit_timer; + u32 rate_limit; + u32 rate_limit_burst; + u32 rate_limit_bucket; + struct proc_dir_entry *proc, *proc_sta, *proc_iface; + + struct work_struct sta_proc_add; + + enum { + STA_ANTENNA_SEL_AUTO = 0, + STA_ANTENNA_SEL_SW_CTRL = 1, + STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2 + } sta_antenna_sel; + + int rate_ctrl_num_up, rate_ctrl_num_down; + +#ifdef CONFIG_IEEE80211_DEBUG_COUNTERS + /* TX/RX handler statistics */ + unsigned int tx_handlers_drop; + unsigned int tx_handlers_queued; + unsigned int tx_handlers_drop_unencrypted; + unsigned int tx_handlers_drop_fragment; + unsigned int tx_handlers_drop_wep; + unsigned int tx_handlers_drop_rate_limit; + unsigned int tx_handlers_drop_not_assoc; + unsigned int tx_handlers_drop_unauth_port; + unsigned int rx_handlers_drop; + unsigned int rx_handlers_queued; + unsigned int rx_handlers_drop_nullfunc; + unsigned int rx_handlers_drop_defrag; + unsigned int rx_handlers_drop_short; + unsigned int rx_handlers_drop_passive_scan; + unsigned int tx_expand_skb_head; + unsigned int tx_expand_skb_head_cloned; + unsigned int rx_expand_skb_head; + unsigned int rx_expand_skb_head2; + unsigned int rx_handlers_fragments; + unsigned int tx_status_drop; + unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; + unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; +#define I802_DEBUG_INC(c) (c)++ +#else /* CONFIG_IEEE80211_DEBUG_COUNTERS */ +#define I802_DEBUG_INC(c) do { } while (0) +#endif /* CONFIG_IEEE80211_DEBUG_COUNTERS */ + + + int default_wep_only; /* only default WEP keys are used with this + * interface; this is used to decide when hwaccel + * can be used with default keys */ + int total_ps_buffered; /* total number of all buffered unicast and + * multicast packets for power saving stations + */ + int allow_broadcast_always; /* whether to allow TX of broadcast frames + * even when there are no associated STAs + */ + + int wifi_wme_noack_test; + unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ + + unsigned int hw_modes; /* bitfield of allowed hardware modes; + * (1 << MODE_*) */ +}; + + +/* ieee80211.c */ +int ieee80211_hw_config(struct net_device *dev); +struct ieee80211_key_conf * +ieee80211_key_data2conf(struct ieee80211_local *local, + struct ieee80211_key *data); +void ieee80211_rx_mgmt(struct net_device *dev, struct sk_buff *skb, + struct ieee80211_rx_status *status, u32 msg_type); +void ieee80211_prepare_rates(struct net_device *dev); +void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); +int ieee80211_if_add_wds(struct net_device *dev, + char *name, + struct ieee80211_if_wds *wds, int locked); +int ieee80211_if_add_vlan(struct net_device *dev, char *name, + struct ieee80211_if_vlan *vlan, int locked); +int ieee80211_if_add_norm(struct net_device *dev, char *name, u8 *bssid, + int locked); + +int ieee80211_if_remove_wds(struct net_device *dev, char *name, int locked); +int ieee80211_if_remove_vlan(struct net_device *dev, char *name, int locked); +int ieee80211_if_remove_norm(struct net_device *dev, char *name, int locked); +int ieee80211_if_flush(struct net_device *dev, int locked); +int ieee80211_if_update_wds(struct net_device *dev, char *name, + struct ieee80211_if_wds *wds, int locked); + +/* ieee80211_ioctl.c */ +int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); +/* Set hw encryption from ieee80211 */ +int ieee80211_set_hw_encryption(struct net_device *dev, + struct sta_info *sta, u8 addr[ETH_ALEN], + struct ieee80211_key *key); + +/* ieee80211_scan.c */ +void ieee80211_init_scan(struct net_device *dev); +void ieee80211_stop_scan(struct net_device *dev); + + + +/* Least common multiple of the used rates (in 100 kbps). This is used to + * calculate rate_inv values for each rate so that only integers are needed. */ +#define CHAN_UTIL_RATE_LCM 95040 +/* 1 usec is 1/8 * (95040/10) = 1188 */ +#define CHAN_UTIL_PER_USEC 1188 +/* Amount of bits to shift the result right to scale the total utilization + * to values that will not wrap around 32-bit integers. */ +#define CHAN_UTIL_SHIFT 9 +/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1): + * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the + * raw value with about 23 should give utilization in 10th of a percentage + * (1/1000). However, utilization is only estimated and not all intervals + * between frames etc. are calculated. 18 seems to give numbers that are closer + * to the real maximum. */ +#define CHAN_UTIL_PER_10MS 18 +#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC) +#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC) + + + +/* ieee80211.c */ +int ieee80211_if_add_sta(struct net_device *dev, char *name, int locked); +int ieee80211_if_remove_sta(struct net_device *dev, char *name, int locked); +/* ieee80211_ioctl.c */ +int ieee80211_set_compression(struct ieee80211_local *local, + struct net_device *dev, struct sta_info *sta); +/* ieee80211_sta.c */ +void ieee80211_sta_timer(unsigned long ptr); +void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, + struct ieee80211_rx_status *rx_status); +int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len); +int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len); +int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid); +int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len); +int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); +void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, + struct ieee80211_rx_status *rx_status); +void ieee80211_rx_bss_list_init(struct net_device *dev); +void ieee80211_rx_bss_list_deinit(struct net_device *dev); +int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); +struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, + struct sk_buff *skb, u8 *bssid, + u8 *addr); +int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason); +int ieee80211_sta_disassociate(struct net_device *dev, u16 reason); + + +#endif /* IEEE80211_I_H */ |