| /* |
| * Copyright 2002-2005, Instant802 Networks, Inc. |
| * Copyright 2005, Devicescape Software, Inc. |
| * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> |
| * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * 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 |
| |
| #include <linux/kernel.h> |
| #include <linux/device.h> |
| #include <linux/if_ether.h> |
| #include <linux/interrupt.h> |
| #include <linux/list.h> |
| #include <linux/netdevice.h> |
| #include <linux/skbuff.h> |
| #include <linux/workqueue.h> |
| #include <linux/types.h> |
| #include <linux/spinlock.h> |
| #include <linux/etherdevice.h> |
| #include <linux/leds.h> |
| #include <net/ieee80211_radiotap.h> |
| #include <net/cfg80211.h> |
| #include <net/mac80211.h> |
| #include "key.h" |
| #include "sta_info.h" |
| |
| struct ieee80211_local; |
| |
| /* 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 |
| |
| /* Required encryption head and tailroom */ |
| #define IEEE80211_ENCRYPT_HEADROOM 8 |
| #define IEEE80211_ENCRYPT_TAILROOM 18 |
| |
| /* 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 |
| |
| #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024)) |
| |
| #define IEEE80211_DEFAULT_UAPSD_QUEUES \ |
| (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \ |
| IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \ |
| IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \ |
| IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) |
| |
| #define IEEE80211_DEFAULT_MAX_SP_LEN \ |
| IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL |
| |
| struct ieee80211_fragment_entry { |
| unsigned long first_frag_time; |
| unsigned int seq; |
| unsigned int rx_queue; |
| unsigned int last_frag; |
| unsigned int extra_len; |
| struct sk_buff_head skb_list; |
| int ccmp; /* Whether fragments were encrypted with CCMP */ |
| u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ |
| }; |
| |
| |
| struct ieee80211_bss { |
| /* don't want to look up all the time */ |
| size_t ssid_len; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| |
| u8 dtim_period; |
| |
| bool wmm_used; |
| bool uapsd_supported; |
| |
| unsigned long last_probe_resp; |
| |
| #ifdef CONFIG_MAC80211_MESH |
| u8 *mesh_id; |
| size_t mesh_id_len; |
| u8 *mesh_cfg; |
| #endif |
| |
| #define IEEE80211_MAX_SUPP_RATES 32 |
| u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; |
| size_t supp_rates_len; |
| |
| /* |
| * During assocation, we save an ERP value from a probe response so |
| * that we can feed ERP info to the driver when handling the |
| * association completes. these fields probably won't be up-to-date |
| * otherwise, you probably don't want to use them. |
| */ |
| bool has_erp_value; |
| u8 erp_value; |
| }; |
| |
| static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss) |
| { |
| #ifdef CONFIG_MAC80211_MESH |
| return bss->mesh_cfg; |
| #endif |
| return NULL; |
| } |
| |
| static inline u8 *bss_mesh_id(struct ieee80211_bss *bss) |
| { |
| #ifdef CONFIG_MAC80211_MESH |
| return bss->mesh_id; |
| #endif |
| return NULL; |
| } |
| |
| static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss) |
| { |
| #ifdef CONFIG_MAC80211_MESH |
| return bss->mesh_id_len; |
| #endif |
| return 0; |
| } |
| |
| |
| typedef unsigned __bitwise__ ieee80211_tx_result; |
| #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) |
| #define TX_DROP ((__force ieee80211_tx_result) 1u) |
| #define TX_QUEUED ((__force ieee80211_tx_result) 2u) |
| |
| #define IEEE80211_TX_FRAGMENTED BIT(0) |
| #define IEEE80211_TX_UNICAST BIT(1) |
| #define IEEE80211_TX_PS_BUFFERED BIT(2) |
| |
| struct ieee80211_tx_data { |
| struct sk_buff *skb; |
| struct ieee80211_local *local; |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta; |
| struct ieee80211_key *key; |
| |
| struct ieee80211_channel *channel; |
| |
| u16 ethertype; |
| unsigned int flags; |
| }; |
| |
| |
| typedef unsigned __bitwise__ ieee80211_rx_result; |
| #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) |
| #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) |
| #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) |
| #define RX_QUEUED ((__force ieee80211_rx_result) 3u) |
| |
| /** |
| * enum ieee80211_packet_rx_flags - packet RX flags |
| * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed |
| * (incl. multicast frames) |
| * @IEEE80211_RX_IN_SCAN: received while scanning |
| * @IEEE80211_RX_FRAGMENTED: fragmented frame |
| * @IEEE80211_RX_AMSDU: a-MSDU packet |
| * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed |
| * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering |
| * |
| * These are per-frame flags that are attached to a frame in the |
| * @rx_flags field of &struct ieee80211_rx_status. |
| */ |
| enum ieee80211_packet_rx_flags { |
| IEEE80211_RX_IN_SCAN = BIT(0), |
| IEEE80211_RX_RA_MATCH = BIT(1), |
| IEEE80211_RX_FRAGMENTED = BIT(2), |
| IEEE80211_RX_AMSDU = BIT(3), |
| IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), |
| IEEE80211_RX_DEFERRED_RELEASE = BIT(5), |
| }; |
| |
| /** |
| * enum ieee80211_rx_flags - RX data flags |
| * |
| * @IEEE80211_RX_CMNTR: received on cooked monitor already |
| * |
| * These flags are used across handling multiple interfaces |
| * for a single frame. |
| */ |
| enum ieee80211_rx_flags { |
| IEEE80211_RX_CMNTR = BIT(0), |
| }; |
| |
| struct ieee80211_rx_data { |
| struct sk_buff *skb; |
| struct ieee80211_local *local; |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta; |
| struct ieee80211_key *key; |
| |
| unsigned int flags; |
| int queue; |
| u32 tkip_iv32; |
| u16 tkip_iv16; |
| }; |
| |
| struct beacon_data { |
| u8 *head, *tail; |
| int head_len, tail_len; |
| int dtim_period; |
| }; |
| |
| struct ieee80211_if_ap { |
| struct beacon_data *beacon; |
| |
| struct list_head vlans; |
| |
| /* yes, this looks ugly, but guarantees that we can later use |
| * bitmap_empty :) |
| * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ |
| u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; |
| struct sk_buff_head ps_bc_buf; |
| atomic_t num_sta_ps; /* number of stations in PS mode */ |
| int dtim_count; |
| bool dtim_bc_mc; |
| }; |
| |
| struct ieee80211_if_wds { |
| struct sta_info *sta; |
| u8 remote_addr[ETH_ALEN]; |
| }; |
| |
| struct ieee80211_if_vlan { |
| struct list_head list; |
| |
| /* used for all tx if the VLAN is configured to 4-addr mode */ |
| struct sta_info *sta; |
| }; |
| |
| struct mesh_stats { |
| __u32 fwded_mcast; /* Mesh forwarded multicast frames */ |
| __u32 fwded_unicast; /* Mesh forwarded unicast frames */ |
| __u32 fwded_frames; /* Mesh total forwarded frames */ |
| __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ |
| __u32 dropped_frames_no_route; /* Not transmitted, no route found */ |
| atomic_t estab_plinks; |
| }; |
| |
| #define PREQ_Q_F_START 0x1 |
| #define PREQ_Q_F_REFRESH 0x2 |
| struct mesh_preq_queue { |
| struct list_head list; |
| u8 dst[ETH_ALEN]; |
| u8 flags; |
| }; |
| |
| enum ieee80211_work_type { |
| IEEE80211_WORK_ABORT, |
| IEEE80211_WORK_DIRECT_PROBE, |
| IEEE80211_WORK_AUTH, |
| IEEE80211_WORK_ASSOC_BEACON_WAIT, |
| IEEE80211_WORK_ASSOC, |
| IEEE80211_WORK_REMAIN_ON_CHANNEL, |
| IEEE80211_WORK_OFFCHANNEL_TX, |
| }; |
| |
| /** |
| * enum work_done_result - indicates what to do after work was done |
| * |
| * @WORK_DONE_DESTROY: This work item is no longer needed, destroy. |
| * @WORK_DONE_REQUEUE: This work item was reset to be reused, and |
| * should be requeued. |
| */ |
| enum work_done_result { |
| WORK_DONE_DESTROY, |
| WORK_DONE_REQUEUE, |
| }; |
| |
| struct ieee80211_work { |
| struct list_head list; |
| |
| struct rcu_head rcu_head; |
| |
| struct ieee80211_sub_if_data *sdata; |
| |
| enum work_done_result (*done)(struct ieee80211_work *wk, |
| struct sk_buff *skb); |
| |
| struct ieee80211_channel *chan; |
| enum nl80211_channel_type chan_type; |
| |
| unsigned long timeout; |
| enum ieee80211_work_type type; |
| |
| u8 filter_ta[ETH_ALEN]; |
| |
| bool started; |
| |
| union { |
| struct { |
| int tries; |
| u16 algorithm, transaction; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| u8 ssid_len; |
| u8 key[WLAN_KEY_LEN_WEP104]; |
| u8 key_len, key_idx; |
| bool privacy; |
| } probe_auth; |
| struct { |
| struct cfg80211_bss *bss; |
| const u8 *supp_rates; |
| const u8 *ht_information_ie; |
| enum ieee80211_smps_mode smps; |
| int tries; |
| u16 capability; |
| u8 prev_bssid[ETH_ALEN]; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| u8 ssid_len; |
| u8 supp_rates_len; |
| bool wmm_used, use_11n, uapsd_used; |
| } assoc; |
| struct { |
| u32 duration; |
| } remain; |
| struct { |
| struct sk_buff *frame; |
| u32 wait; |
| } offchan_tx; |
| }; |
| |
| int ie_len; |
| /* must be last */ |
| u8 ie[0]; |
| }; |
| |
| /* flags used in struct ieee80211_if_managed.flags */ |
| enum ieee80211_sta_flags { |
| IEEE80211_STA_BEACON_POLL = BIT(0), |
| IEEE80211_STA_CONNECTION_POLL = BIT(1), |
| IEEE80211_STA_CONTROL_PORT = BIT(2), |
| IEEE80211_STA_DISABLE_11N = BIT(4), |
| IEEE80211_STA_CSA_RECEIVED = BIT(5), |
| IEEE80211_STA_MFP_ENABLED = BIT(6), |
| IEEE80211_STA_UAPSD_ENABLED = BIT(7), |
| IEEE80211_STA_NULLFUNC_ACKED = BIT(8), |
| IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), |
| }; |
| |
| struct ieee80211_if_managed { |
| struct timer_list timer; |
| struct timer_list conn_mon_timer; |
| struct timer_list bcn_mon_timer; |
| struct timer_list chswitch_timer; |
| struct work_struct monitor_work; |
| struct work_struct chswitch_work; |
| struct work_struct beacon_connection_loss_work; |
| |
| unsigned long beacon_timeout; |
| unsigned long probe_timeout; |
| int probe_send_count; |
| bool nullfunc_failed; |
| |
| struct mutex mtx; |
| struct cfg80211_bss *associated; |
| |
| u8 bssid[ETH_ALEN]; |
| |
| u16 aid; |
| |
| unsigned long timers_running; /* used for quiesce/restart */ |
| bool powersave; /* powersave requested for this iface */ |
| enum ieee80211_smps_mode req_smps, /* requested smps mode */ |
| ap_smps, /* smps mode AP thinks we're in */ |
| driver_smps_mode; /* smps mode request */ |
| |
| struct work_struct request_smps_work; |
| |
| unsigned int flags; |
| |
| bool beacon_crc_valid; |
| u32 beacon_crc; |
| |
| enum { |
| IEEE80211_MFP_DISABLED, |
| IEEE80211_MFP_OPTIONAL, |
| IEEE80211_MFP_REQUIRED |
| } mfp; /* management frame protection */ |
| |
| int wmm_last_param_set; |
| |
| u8 use_4addr; |
| |
| /* Signal strength from the last Beacon frame in the current BSS. */ |
| int last_beacon_signal; |
| |
| /* |
| * Weighted average of the signal strength from Beacon frames in the |
| * current BSS. This is in units of 1/16 of the signal unit to maintain |
| * accuracy and to speed up calculations, i.e., the value need to be |
| * divided by 16 to get the actual value. |
| */ |
| int ave_beacon_signal; |
| |
| /* |
| * Number of Beacon frames used in ave_beacon_signal. This can be used |
| * to avoid generating less reliable cqm events that would be based |
| * only on couple of received frames. |
| */ |
| unsigned int count_beacon_signal; |
| |
| /* |
| * Last Beacon frame signal strength average (ave_beacon_signal / 16) |
| * that triggered a cqm event. 0 indicates that no event has been |
| * generated for the current association. |
| */ |
| int last_cqm_event_signal; |
| }; |
| |
| struct ieee80211_if_ibss { |
| struct timer_list timer; |
| |
| struct mutex mtx; |
| |
| unsigned long last_scan_completed; |
| |
| u32 basic_rates; |
| |
| bool timer_running; |
| |
| bool fixed_bssid; |
| bool fixed_channel; |
| bool privacy; |
| |
| u8 bssid[ETH_ALEN]; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| u8 ssid_len, ie_len; |
| u8 *ie; |
| struct ieee80211_channel *channel; |
| |
| unsigned long ibss_join_req; |
| /* probe response/beacon for IBSS */ |
| struct sk_buff *presp, *skb; |
| |
| enum { |
| IEEE80211_IBSS_MLME_SEARCH, |
| IEEE80211_IBSS_MLME_JOINED, |
| } state; |
| }; |
| |
| struct ieee80211_if_mesh { |
| struct timer_list housekeeping_timer; |
| struct timer_list mesh_path_timer; |
| struct timer_list mesh_path_root_timer; |
| |
| unsigned long timers_running; |
| |
| unsigned long wrkq_flags; |
| |
| u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; |
| size_t mesh_id_len; |
| /* Active Path Selection Protocol Identifier */ |
| u8 mesh_pp_id; |
| /* Active Path Selection Metric Identifier */ |
| u8 mesh_pm_id; |
| /* Congestion Control Mode Identifier */ |
| u8 mesh_cc_id; |
| /* Synchronization Protocol Identifier */ |
| u8 mesh_sp_id; |
| /* Authentication Protocol Identifier */ |
| u8 mesh_auth_id; |
| /* Local mesh Sequence Number */ |
| u32 sn; |
| /* Last used PREQ ID */ |
| u32 preq_id; |
| atomic_t mpaths; |
| /* Timestamp of last SN update */ |
| unsigned long last_sn_update; |
| /* Timestamp of last SN sent */ |
| unsigned long last_preq; |
| struct mesh_rmc *rmc; |
| spinlock_t mesh_preq_queue_lock; |
| struct mesh_preq_queue preq_queue; |
| int preq_queue_len; |
| struct mesh_stats mshstats; |
| struct mesh_config mshcfg; |
| u32 mesh_seqnum; |
| bool accepting_plinks; |
| const u8 *ie; |
| u8 ie_len; |
| enum { |
| IEEE80211_MESH_SEC_NONE = 0x0, |
| IEEE80211_MESH_SEC_AUTHED = 0x1, |
| IEEE80211_MESH_SEC_SECURED = 0x2, |
| } security; |
| }; |
| |
| #ifdef CONFIG_MAC80211_MESH |
| #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
| do { (msh)->mshstats.name++; } while (0) |
| #else |
| #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ |
| do { } while (0) |
| #endif |
| |
| /** |
| * enum ieee80211_sub_if_data_flags - virtual interface flags |
| * |
| * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets |
| * @IEEE80211_SDATA_PROMISC: interface is promisc |
| * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode |
| * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between |
| * associated stations and deliver multicast frames both |
| * back to wireless media and to the local net stack. |
| */ |
| enum ieee80211_sub_if_data_flags { |
| IEEE80211_SDATA_ALLMULTI = BIT(0), |
| IEEE80211_SDATA_PROMISC = BIT(1), |
| IEEE80211_SDATA_OPERATING_GMODE = BIT(2), |
| IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), |
| }; |
| |
| /** |
| * enum ieee80211_sdata_state_bits - virtual interface state bits |
| * @SDATA_STATE_RUNNING: virtual interface is up & running; this |
| * mirrors netif_running() but is separate for interface type |
| * change handling while the interface is up |
| * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel |
| * mode, so queues are stopped |
| */ |
| enum ieee80211_sdata_state_bits { |
| SDATA_STATE_RUNNING, |
| SDATA_STATE_OFFCHANNEL, |
| }; |
| |
| struct ieee80211_sub_if_data { |
| struct list_head list; |
| |
| struct wireless_dev wdev; |
| |
| /* keys */ |
| struct list_head key_list; |
| |
| struct net_device *dev; |
| struct ieee80211_local *local; |
| |
| unsigned int flags; |
| |
| unsigned long state; |
| |
| int drop_unencrypted; |
| |
| char name[IFNAMSIZ]; |
| |
| /* |
| * keep track of whether the HT opmode (stored in |
| * vif.bss_info.ht_operation_mode) is valid. |
| */ |
| bool ht_opmode_valid; |
| |
| /* to detect idle changes */ |
| bool old_idle; |
| |
| /* Fragment table for host-based reassembly */ |
| struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; |
| unsigned int fragment_next; |
| |
| struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; |
| struct ieee80211_key *default_unicast_key, *default_multicast_key; |
| struct ieee80211_key *default_mgmt_key; |
| |
| u16 sequence_number; |
| __be16 control_port_protocol; |
| bool control_port_no_encrypt; |
| |
| struct work_struct work; |
| struct sk_buff_head skb_queue; |
| |
| bool arp_filter_state; |
| |
| /* |
| * AP this belongs to: self in AP mode and |
| * corresponding AP in VLAN mode, NULL for |
| * all others (might be needed later in IBSS) |
| */ |
| struct ieee80211_if_ap *bss; |
| |
| /* bitmap of allowed (non-MCS) rate indexes for rate control */ |
| u32 rc_rateidx_mask[IEEE80211_NUM_BANDS]; |
| |
| union { |
| struct ieee80211_if_ap ap; |
| struct ieee80211_if_wds wds; |
| struct ieee80211_if_vlan vlan; |
| struct ieee80211_if_managed mgd; |
| struct ieee80211_if_ibss ibss; |
| struct ieee80211_if_mesh mesh; |
| u32 mntr_flags; |
| } u; |
| |
| #ifdef CONFIG_MAC80211_DEBUGFS |
| struct { |
| struct dentry *dir; |
| struct dentry *subdir_stations; |
| struct dentry *default_unicast_key; |
| struct dentry *default_multicast_key; |
| struct dentry *default_mgmt_key; |
| } debugfs; |
| #endif |
| /* must be last, dynamically sized area in this! */ |
| struct ieee80211_vif vif; |
| }; |
| |
| static inline |
| struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) |
| { |
| return container_of(p, struct ieee80211_sub_if_data, vif); |
| } |
| |
| enum sdata_queue_type { |
| IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, |
| IEEE80211_SDATA_QUEUE_AGG_START = 1, |
| IEEE80211_SDATA_QUEUE_AGG_STOP = 2, |
| }; |
| |
| enum { |
| IEEE80211_RX_MSG = 1, |
| IEEE80211_TX_STATUS_MSG = 2, |
| }; |
| |
| enum queue_stop_reason { |
| IEEE80211_QUEUE_STOP_REASON_DRIVER, |
| IEEE80211_QUEUE_STOP_REASON_PS, |
| IEEE80211_QUEUE_STOP_REASON_CSA, |
| IEEE80211_QUEUE_STOP_REASON_AGGREGATION, |
| IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
| IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
| }; |
| |
| #ifdef CONFIG_MAC80211_LEDS |
| struct tpt_led_trigger { |
| struct led_trigger trig; |
| char name[32]; |
| const struct ieee80211_tpt_blink *blink_table; |
| unsigned int blink_table_len; |
| struct timer_list timer; |
| unsigned long prev_traffic; |
| unsigned long tx_bytes, rx_bytes; |
| unsigned int active, want; |
| bool running; |
| }; |
| #endif |
| |
| /** |
| * mac80211 scan flags - currently active scan mode |
| * |
| * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as |
| * well be on the operating channel |
| * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to |
| * determine if we are on the operating channel or not |
| * @SCAN_COMPLETED: Set for our scan work function when the driver reported |
| * that the scan completed. |
| * @SCAN_ABORTED: Set for our scan work function when the driver reported |
| * a scan complete for an aborted scan. |
| */ |
| enum { |
| SCAN_SW_SCANNING, |
| SCAN_HW_SCANNING, |
| SCAN_COMPLETED, |
| SCAN_ABORTED, |
| }; |
| |
| /** |
| * enum mac80211_scan_state - scan state machine states |
| * |
| * @SCAN_DECISION: Main entry point to the scan state machine, this state |
| * determines if we should keep on scanning or switch back to the |
| * operating channel |
| * @SCAN_SET_CHANNEL: Set the next channel to be scanned |
| * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses |
| * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP |
| * about us leaving the channel and stop all associated STA interfaces |
| * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the |
| * AP about us being back and restart all associated STA interfaces |
| */ |
| enum mac80211_scan_state { |
| SCAN_DECISION, |
| SCAN_SET_CHANNEL, |
| SCAN_SEND_PROBE, |
| SCAN_LEAVE_OPER_CHANNEL, |
| SCAN_ENTER_OPER_CHANNEL, |
| }; |
| |
| struct ieee80211_local { |
| /* embed the driver visible part. |
| * don't cast (use the static inlines below), but we keep |
| * it first anyway so they become a no-op */ |
| struct ieee80211_hw hw; |
| |
| const struct ieee80211_ops *ops; |
| |
| /* |
| * work stuff, potentially off-channel (in the future) |
| */ |
| struct list_head work_list; |
| struct timer_list work_timer; |
| struct work_struct work_work; |
| struct sk_buff_head work_skb_queue; |
| |
| /* |
| * private workqueue to mac80211. mac80211 makes this accessible |
| * via ieee80211_queue_work() |
| */ |
| struct workqueue_struct *workqueue; |
| |
| unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; |
| /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ |
| spinlock_t queue_stop_reason_lock; |
| |
| int open_count; |
| int monitors, cooked_mntrs; |
| /* number of interfaces with corresponding FIF_ flags */ |
| int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, |
| fif_probe_req; |
| int probe_req_reg; |
| unsigned int filter_flags; /* FIF_* */ |
| |
| bool wiphy_ciphers_allocated; |
| |
| /* protects the aggregated multicast list and filter calls */ |
| spinlock_t filter_lock; |
| |
| /* used for uploading changed mc list */ |
| struct work_struct reconfig_filter; |
| |
| /* used to reconfigure hardware SM PS */ |
| struct work_struct recalc_smps; |
| |
| /* aggregated multicast list */ |
| struct netdev_hw_addr_list mc_list; |
| |
| bool tim_in_locked_section; /* see ieee80211_beacon_get() */ |
| |
| /* |
| * suspended is true if we finished all the suspend _and_ we have |
| * not yet come up from resume. This is to be used by mac80211 |
| * to ensure driver sanity during suspend and mac80211's own |
| * sanity. It can eventually be used for WoW as well. |
| */ |
| bool suspended; |
| |
| /* |
| * Resuming is true while suspended, but when we're reprogramming the |
| * hardware -- at that time it's allowed to use ieee80211_queue_work() |
| * again even though some other parts of the stack are still suspended |
| * and we still drop received frames to avoid waking the stack. |
| */ |
| bool resuming; |
| |
| /* |
| * quiescing is true during the suspend process _only_ to |
| * ease timer cancelling etc. |
| */ |
| bool quiescing; |
| |
| /* device is started */ |
| bool started; |
| |
| /* wowlan is enabled -- don't reconfig on resume */ |
| bool wowlan; |
| |
| int tx_headroom; /* required headroom for hardware/radiotap */ |
| |
| /* count for keys needing tailroom space allocation */ |
| int crypto_tx_tailroom_needed_cnt; |
| |
| /* 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; |
| |
| /* |
| * Internal FIFO queue which is shared between multiple rx path |
| * stages. Its main task is to provide a serialization mechanism, |
| * so all rx handlers can enjoy having exclusive access to their |
| * private data structures. |
| */ |
| struct sk_buff_head rx_skb_queue; |
| bool running_rx_handler; /* protected by rx_skb_queue.lock */ |
| |
| /* Station data */ |
| /* |
| * The mutex only protects the list and counter, |
| * reads are done in RCU. |
| * Additionally, the lock protects the hash table, |
| * the pending list and each BSS's TIM bitmap. |
| */ |
| struct mutex sta_mtx; |
| spinlock_t sta_lock; |
| unsigned long num_sta; |
| struct list_head sta_list, sta_pending_list; |
| struct sta_info *sta_hash[STA_HASH_SIZE]; |
| struct timer_list sta_cleanup; |
| struct work_struct sta_finish_work; |
| int sta_generation; |
| |
| struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; |
| struct tasklet_struct tx_pending_tasklet; |
| |
| atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; |
| |
| /* number of interfaces with corresponding IFF_ flags */ |
| atomic_t iff_allmultis, iff_promiscs; |
| |
| struct rate_control_ref *rate_ctrl; |
| |
| struct crypto_cipher *wep_tx_tfm; |
| struct crypto_cipher *wep_rx_tfm; |
| u32 wep_iv; |
| |
| /* see iface.c */ |
| struct list_head interfaces; |
| struct mutex iflist_mtx; |
| |
| /* |
| * Key mutex, protects sdata's key_list and sta_info's |
| * key pointers (write access, they're RCU.) |
| */ |
| struct mutex key_mtx; |
| |
| /* mutex for scan and work locking */ |
| struct mutex mtx; |
| |
| /* Scanning and BSS list */ |
| unsigned long scanning; |
| struct cfg80211_ssid scan_ssid; |
| struct cfg80211_scan_request *int_scan_req; |
| struct cfg80211_scan_request *scan_req, *hw_scan_req; |
| struct ieee80211_channel *scan_channel; |
| enum ieee80211_band hw_scan_band; |
| int scan_channel_idx; |
| int scan_ies_len; |
| |
| unsigned long leave_oper_channel_time; |
| enum mac80211_scan_state next_scan_state; |
| struct delayed_work scan_work; |
| struct ieee80211_sub_if_data *scan_sdata; |
| enum nl80211_channel_type _oper_channel_type; |
| struct ieee80211_channel *oper_channel, *csa_channel; |
| |
| /* Temporary remain-on-channel for off-channel operations */ |
| struct ieee80211_channel *tmp_channel; |
| enum nl80211_channel_type tmp_channel_type; |
| |
| /* SNMP counters */ |
| /* dot11CountersTable */ |
| u32 dot11TransmittedFragmentCount; |
| u32 dot11MulticastTransmittedFrameCount; |
| u32 dot11FailedCount; |
| u32 dot11RetryCount; |
| u32 dot11MultipleRetryCount; |
| u32 dot11FrameDuplicateCount; |
| u32 dot11ReceivedFragmentCount; |
| u32 dot11MulticastReceivedFrameCount; |
| u32 dot11TransmittedFrameCount; |
| |
| #ifdef CONFIG_MAC80211_LEDS |
| int tx_led_counter, rx_led_counter; |
| struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; |
| struct tpt_led_trigger *tpt_led_trigger; |
| char tx_led_name[32], rx_led_name[32], |
| assoc_led_name[32], radio_led_name[32]; |
| #endif |
| |
| #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| /* TX/RX handler statistics */ |
| unsigned int tx_handlers_drop; |
| unsigned int tx_handlers_queued; |
| unsigned int tx_handlers_drop_unencrypted; |
| unsigned int tx_handlers_drop_fragment; |
| unsigned int tx_handlers_drop_wep; |
| unsigned int tx_handlers_drop_not_assoc; |
| unsigned int tx_handlers_drop_unauth_port; |
| unsigned int rx_handlers_drop; |
| unsigned int rx_handlers_queued; |
| unsigned int rx_handlers_drop_nullfunc; |
| unsigned int rx_handlers_drop_defrag; |
| unsigned int rx_handlers_drop_short; |
| unsigned int rx_handlers_drop_passive_scan; |
| unsigned int tx_expand_skb_head; |
| unsigned int tx_expand_skb_head_cloned; |
| unsigned int rx_expand_skb_head; |
| unsigned int rx_expand_skb_head2; |
| unsigned int rx_handlers_fragments; |
| unsigned int tx_status_drop; |
| #define I802_DEBUG_INC(c) (c)++ |
| #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ |
| #define I802_DEBUG_INC(c) do { } while (0) |
| #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ |
| |
| |
| int total_ps_buffered; /* total number of all buffered unicast and |
| * multicast packets for power saving stations |
| */ |
| int wifi_wme_noack_test; |
| unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ |
| |
| /* |
| * Bitmask of enabled u-apsd queues, |
| * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association |
| * to take effect. |
| */ |
| unsigned int uapsd_queues; |
| |
| /* |
| * Maximum number of buffered frames AP can deliver during a |
| * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. |
| * Needs a new association to take effect. |
| */ |
| unsigned int uapsd_max_sp_len; |
| |
| bool pspolling; |
| bool offchannel_ps_enabled; |
| /* |
| * PS can only be enabled when we have exactly one managed |
| * interface (and monitors) in PS, this then points there. |
| */ |
| struct ieee80211_sub_if_data *ps_sdata; |
| struct work_struct dynamic_ps_enable_work; |
| struct work_struct dynamic_ps_disable_work; |
| struct timer_list dynamic_ps_timer; |
| struct notifier_block network_latency_notifier; |
| struct notifier_block ifa_notifier; |
| |
| /* |
| * The dynamic ps timeout configured from user space via WEXT - |
| * this will override whatever chosen by mac80211 internally. |
| */ |
| int dynamic_ps_forced_timeout; |
| int dynamic_ps_user_timeout; |
| bool disable_dynamic_ps; |
| |
| int user_power_level; /* in dBm */ |
| int power_constr_level; /* in dBm */ |
| |
| enum ieee80211_smps_mode smps_mode; |
| |
| struct work_struct restart_work; |
| |
| #ifdef CONFIG_MAC80211_DEBUGFS |
| struct local_debugfsdentries { |
| struct dentry *rcdir; |
| struct dentry *keys; |
| } debugfs; |
| #endif |
| |
| struct ieee80211_channel *hw_roc_channel; |
| struct net_device *hw_roc_dev; |
| struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status; |
| struct work_struct hw_roc_start, hw_roc_done; |
| enum nl80211_channel_type hw_roc_channel_type; |
| unsigned int hw_roc_duration; |
| u32 hw_roc_cookie; |
| bool hw_roc_for_tx; |
| unsigned long hw_offchan_tx_cookie; |
| |
| /* dummy netdev for use w/ NAPI */ |
| struct net_device napi_dev; |
| |
| struct napi_struct napi; |
| }; |
| |
| static inline struct ieee80211_sub_if_data * |
| IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) |
| { |
| return netdev_priv(dev); |
| } |
| |
| /* this struct represents 802.11n's RA/TID combination */ |
| struct ieee80211_ra_tid { |
| u8 ra[ETH_ALEN]; |
| u16 tid; |
| }; |
| |
| /* Parsed Information Elements */ |
| struct ieee802_11_elems { |
| u8 *ie_start; |
| size_t total_len; |
| |
| /* pointers to IEs */ |
| u8 *ssid; |
| u8 *supp_rates; |
| u8 *fh_params; |
| u8 *ds_params; |
| u8 *cf_params; |
| struct ieee80211_tim_ie *tim; |
| u8 *ibss_params; |
| u8 *challenge; |
| u8 *wpa; |
| u8 *rsn; |
| u8 *erp_info; |
| u8 *ext_supp_rates; |
| u8 *wmm_info; |
| u8 *wmm_param; |
| struct ieee80211_ht_cap *ht_cap_elem; |
| struct ieee80211_ht_info *ht_info_elem; |
| struct ieee80211_meshconf_ie *mesh_config; |
| u8 *mesh_id; |
| u8 *peer_link; |
| u8 *preq; |
| u8 *prep; |
| u8 *perr; |
| struct ieee80211_rann_ie *rann; |
| u8 *ch_switch_elem; |
| u8 *country_elem; |
| u8 *pwr_constr_elem; |
| u8 *quiet_elem; /* first quite element */ |
| u8 *timeout_int; |
| |
| /* length of them, respectively */ |
| u8 ssid_len; |
| u8 supp_rates_len; |
| u8 fh_params_len; |
| u8 ds_params_len; |
| u8 cf_params_len; |
| u8 tim_len; |
| u8 ibss_params_len; |
| u8 challenge_len; |
| u8 wpa_len; |
| u8 rsn_len; |
| u8 erp_info_len; |
| u8 ext_supp_rates_len; |
| u8 wmm_info_len; |
| u8 wmm_param_len; |
| u8 mesh_id_len; |
| u8 peer_link_len; |
| u8 preq_len; |
| u8 prep_len; |
| u8 perr_len; |
| u8 ch_switch_elem_len; |
| u8 country_elem_len; |
| u8 pwr_constr_elem_len; |
| u8 quiet_elem_len; |
| u8 num_of_quiet_elem; /* can be more the one */ |
| u8 timeout_int_len; |
| }; |
| |
| static inline struct ieee80211_local *hw_to_local( |
| struct ieee80211_hw *hw) |
| { |
| return container_of(hw, struct ieee80211_local, hw); |
| } |
| |
| static inline struct ieee80211_hw *local_to_hw( |
| struct ieee80211_local *local) |
| { |
| return &local->hw; |
| } |
| |
| |
| static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) |
| { |
| return compare_ether_addr(raddr, addr) == 0 || |
| is_broadcast_ether_addr(raddr); |
| } |
| |
| |
| int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); |
| void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); |
| void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| u32 changed); |
| void ieee80211_configure_filter(struct ieee80211_local *local); |
| u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); |
| |
| /* STA code */ |
| void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); |
| int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_auth_request *req); |
| int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_assoc_request *req); |
| int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_deauth_request *req, |
| void *cookie); |
| int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_disassoc_request *req, |
| void *cookie); |
| void ieee80211_send_pspoll(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata); |
| void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); |
| int ieee80211_max_network_latency(struct notifier_block *nb, |
| unsigned long data, void *dummy); |
| int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_channel_sw_ie *sw_elem, |
| struct ieee80211_bss *bss, |
| u64 timestamp); |
| void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb); |
| void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); |
| |
| /* IBSS code */ |
| void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); |
| void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); |
| struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, |
| u8 *bssid, u8 *addr, u32 supp_rates, |
| gfp_t gfp); |
| int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_ibss_params *params); |
| int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb); |
| |
| /* mesh code */ |
| void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb); |
| |
| /* scan/BSS handling */ |
| void ieee80211_scan_work(struct work_struct *work); |
| int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata, |
| const u8 *ssid, u8 ssid_len, |
| struct ieee80211_channel *chan); |
| int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, |
| struct cfg80211_scan_request *req); |
| void ieee80211_scan_cancel(struct ieee80211_local *local); |
| ieee80211_rx_result |
| ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); |
| |
| void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); |
| struct ieee80211_bss * |
| ieee80211_bss_info_update(struct ieee80211_local *local, |
| struct ieee80211_rx_status *rx_status, |
| struct ieee80211_mgmt *mgmt, |
| size_t len, |
| struct ieee802_11_elems *elems, |
| struct ieee80211_channel *channel, |
| bool beacon); |
| struct ieee80211_bss * |
| ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq, |
| u8 *ssid, u8 ssid_len); |
| void ieee80211_rx_bss_put(struct ieee80211_local *local, |
| struct ieee80211_bss *bss); |
| |
| /* off-channel helpers */ |
| bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local); |
| void ieee80211_offchannel_enable_all_ps(struct ieee80211_local *local, |
| bool tell_ap); |
| void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, |
| bool offchannel_ps_enable); |
| void ieee80211_offchannel_return(struct ieee80211_local *local, |
| bool enable_beaconing, |
| bool offchannel_ps_disable); |
| void ieee80211_hw_roc_setup(struct ieee80211_local *local); |
| |
| /* interface handling */ |
| int ieee80211_iface_init(void); |
| void ieee80211_iface_exit(void); |
| int ieee80211_if_add(struct ieee80211_local *local, const char *name, |
| struct net_device **new_dev, enum nl80211_iftype type, |
| struct vif_params *params); |
| int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, |
| enum nl80211_iftype type); |
| void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_remove_interfaces(struct ieee80211_local *local); |
| u32 __ieee80211_recalc_idle(struct ieee80211_local *local); |
| void ieee80211_recalc_idle(struct ieee80211_local *local); |
| void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, |
| const int offset); |
| |
| static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) |
| { |
| return test_bit(SDATA_STATE_RUNNING, &sdata->state); |
| } |
| |
| /* tx handling */ |
| void ieee80211_clear_tx_pending(struct ieee80211_local *local); |
| void ieee80211_tx_pending(unsigned long data); |
| netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, |
| struct net_device *dev); |
| netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, |
| struct net_device *dev); |
| |
| /* |
| * radiotap header for status frames |
| */ |
| struct ieee80211_tx_status_rtap_hdr { |
| struct ieee80211_radiotap_header hdr; |
| u8 rate; |
| u8 padding_for_rate; |
| __le16 tx_flags; |
| u8 data_retries; |
| } __packed; |
| |
| |
| /* HT */ |
| void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband, |
| struct ieee80211_ht_cap *ht_cap_ie, |
| struct ieee80211_sta_ht_cap *ht_cap); |
| void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); |
| void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, |
| const u8 *da, u16 tid, |
| u16 initiator, u16 reason_code); |
| int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, |
| enum ieee80211_smps_mode smps, const u8 *da, |
| const u8 *bssid); |
| void ieee80211_request_smps_work(struct work_struct *work); |
| |
| void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
| u16 initiator, u16 reason, bool stop); |
| void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, |
| u16 initiator, u16 reason, bool stop); |
| void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx); |
| void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, |
| struct sta_info *sta, |
| struct ieee80211_mgmt *mgmt, size_t len); |
| void ieee80211_process_addba_resp(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct ieee80211_mgmt *mgmt, |
| size_t len); |
| void ieee80211_process_addba_request(struct ieee80211_local *local, |
| struct sta_info *sta, |
| struct ieee80211_mgmt *mgmt, |
| size_t len); |
| |
| int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
| enum ieee80211_back_parties initiator, |
| bool tx); |
| int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, |
| enum ieee80211_back_parties initiator, |
| bool tx); |
| void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid); |
| void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid); |
| void ieee80211_ba_session_work(struct work_struct *work); |
| void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); |
| void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); |
| |
| /* Spectrum management */ |
| void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_mgmt *mgmt, |
| size_t len); |
| |
| /* Suspend/resume and hw reconfiguration */ |
| int ieee80211_reconfig(struct ieee80211_local *local); |
| void ieee80211_stop_device(struct ieee80211_local *local); |
| |
| #ifdef CONFIG_PM |
| int __ieee80211_suspend(struct ieee80211_hw *hw, |
| struct cfg80211_wowlan *wowlan); |
| |
| static inline int __ieee80211_resume(struct ieee80211_hw *hw) |
| { |
| struct ieee80211_local *local = hw_to_local(hw); |
| |
| WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
| "%s: resume with hardware scan still in progress\n", |
| wiphy_name(hw->wiphy)); |
| |
| return ieee80211_reconfig(hw_to_local(hw)); |
| } |
| #else |
| static inline int __ieee80211_suspend(struct ieee80211_hw *hw, |
| struct cfg80211_wowlan *wowlan) |
| { |
| return 0; |
| } |
| |
| static inline int __ieee80211_resume(struct ieee80211_hw *hw) |
| { |
| return 0; |
| } |
| #endif |
| |
| /* utility functions/constants */ |
| extern void *mac80211_wiphy_privid; /* for wiphy privid */ |
| u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, |
| enum nl80211_iftype type); |
| int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, |
| int rate, int erp, int short_preamble); |
| void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, |
| struct ieee80211_hdr *hdr, const u8 *tsc, |
| gfp_t gfp); |
| void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb); |
| void ieee802_11_parse_elems(u8 *start, size_t len, |
| struct ieee802_11_elems *elems); |
| u32 ieee802_11_parse_elems_crc(u8 *start, size_t len, |
| struct ieee802_11_elems *elems, |
| u64 filter, u32 crc); |
| u32 ieee80211_mandatory_rates(struct ieee80211_local *local, |
| enum ieee80211_band band); |
| |
| void ieee80211_dynamic_ps_enable_work(struct work_struct *work); |
| void ieee80211_dynamic_ps_disable_work(struct work_struct *work); |
| void ieee80211_dynamic_ps_timer(unsigned long data); |
| void ieee80211_send_nullfunc(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata, |
| int powersave); |
| void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_hdr *hdr); |
| void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_hdr *hdr, bool ack); |
| void ieee80211_beacon_connection_loss_work(struct work_struct *work); |
| |
| void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
| enum queue_stop_reason reason); |
| void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
| enum queue_stop_reason reason); |
| void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
| enum queue_stop_reason reason); |
| void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
| enum queue_stop_reason reason); |
| void ieee80211_add_pending_skb(struct ieee80211_local *local, |
| struct sk_buff *skb); |
| int ieee80211_add_pending_skbs(struct ieee80211_local *local, |
| struct sk_buff_head *skbs); |
| int ieee80211_add_pending_skbs_fn(struct ieee80211_local *local, |
| struct sk_buff_head *skbs, |
| void (*fn)(void *data), void *data); |
| |
| void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
| u16 transaction, u16 auth_alg, |
| u8 *extra, size_t extra_len, const u8 *bssid, |
| const u8 *key, u8 key_len, u8 key_idx); |
| int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, |
| const u8 *ie, size_t ie_len, |
| enum ieee80211_band band, u32 rate_mask, |
| u8 channel); |
| struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
| u8 *dst, |
| const u8 *ssid, size_t ssid_len, |
| const u8 *ie, size_t ie_len); |
| void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, |
| const u8 *ssid, size_t ssid_len, |
| const u8 *ie, size_t ie_len); |
| |
| void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata, |
| const size_t supp_rates_len, |
| const u8 *supp_rates); |
| u32 ieee80211_sta_get_rates(struct ieee80211_local *local, |
| struct ieee802_11_elems *elems, |
| enum ieee80211_band band); |
| int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, |
| enum ieee80211_smps_mode smps_mode); |
| void ieee80211_recalc_smps(struct ieee80211_local *local); |
| |
| size_t ieee80211_ie_split(const u8 *ies, size_t ielen, |
| const u8 *ids, int n_ids, size_t offset); |
| size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); |
| |
| /* internal work items */ |
| void ieee80211_work_init(struct ieee80211_local *local); |
| void ieee80211_add_work(struct ieee80211_work *wk); |
| void free_work(struct ieee80211_work *wk); |
| void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata); |
| ieee80211_rx_result ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb); |
| int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_channel *chan, |
| enum nl80211_channel_type channel_type, |
| unsigned int duration, u64 *cookie); |
| int ieee80211_wk_cancel_remain_on_channel( |
| struct ieee80211_sub_if_data *sdata, u64 cookie); |
| |
| /* channel management */ |
| enum ieee80211_chan_mode { |
| CHAN_MODE_UNDEFINED, |
| CHAN_MODE_HOPPING, |
| CHAN_MODE_FIXED, |
| }; |
| |
| enum ieee80211_chan_mode |
| ieee80211_get_channel_mode(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *ignore); |
| bool ieee80211_set_channel_type(struct ieee80211_local *local, |
| struct ieee80211_sub_if_data *sdata, |
| enum nl80211_channel_type chantype); |
| |
| #ifdef CONFIG_MAC80211_NOINLINE |
| #define debug_noinline noinline |
| #else |
| #define debug_noinline |
| #endif |
| |
| #endif /* IEEE80211_I_H */ |