| /* |
| * Copyright 2002-2005, Instant802 Networks, Inc. |
| * Copyright 2005, Devicescape Software, Inc. |
| * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> |
| * Copyright 2007-2008 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 <net/wireless.h> |
| #include <net/iw_handler.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 12 |
| |
| /* 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 |
| |
| /* |
| * Time after which we ignore scan results and no longer report/use |
| * them in any way. |
| */ |
| #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) |
| |
| 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 { |
| struct list_head list; |
| struct ieee80211_bss *hnext; |
| size_t ssid_len; |
| |
| atomic_t users; |
| |
| u8 bssid[ETH_ALEN]; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| u8 dtim_period; |
| u16 capability; /* host byte order */ |
| enum ieee80211_band band; |
| int freq; |
| int signal, noise, qual; |
| u8 *ies; /* all information elements from the last Beacon or Probe |
| * Response frames; note Beacon frame is not allowed to |
| * override values from Probe Response */ |
| size_t ies_len; |
| bool wmm_used; |
| #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; |
| u64 timestamp; |
| int beacon_int; |
| |
| unsigned long last_probe_resp; |
| unsigned long last_update; |
| |
| /* 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. */ |
| int 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) |
| #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3) |
| |
| struct ieee80211_tx_data { |
| struct sk_buff *skb; |
| struct net_device *dev; |
| struct ieee80211_local *local; |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta; |
| struct ieee80211_key *key; |
| |
| struct ieee80211_channel *channel; |
| s8 rate_idx; |
| /* 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. */ |
| s8 last_frag_rate_idx; |
| |
| /* Extra fragments (in addition to the first fragment |
| * in skb) */ |
| struct sk_buff **extra_frag; |
| int num_extra_frag; |
| |
| 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) |
| |
| #define IEEE80211_RX_IN_SCAN BIT(0) |
| /* frame is destined to interface currently processed (incl. multicast frames) */ |
| #define IEEE80211_RX_RA_MATCH BIT(1) |
| #define IEEE80211_RX_AMSDU BIT(2) |
| #define IEEE80211_RX_CMNTR_REPORTED BIT(3) |
| #define IEEE80211_RX_FRAGMENTED BIT(4) |
| |
| struct ieee80211_rx_data { |
| struct sk_buff *skb; |
| struct net_device *dev; |
| struct ieee80211_local *local; |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta; |
| struct ieee80211_key *key; |
| struct ieee80211_rx_status *status; |
| struct ieee80211_rate *rate; |
| |
| u16 ethertype; |
| unsigned int flags; |
| int sent_ps_buffered; |
| int queue; |
| u32 tkip_iv32; |
| u16 tkip_iv16; |
| }; |
| |
| struct ieee80211_tx_stored_packet { |
| struct sk_buff *skb; |
| struct sk_buff **extra_frag; |
| s8 last_frag_rate_idx; |
| int num_extra_frag; |
| bool last_frag_rate_ctrl_probe; |
| }; |
| |
| 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; |
| |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| size_t ssid_len; |
| |
| /* 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; |
| }; |
| |
| struct ieee80211_if_wds { |
| struct sta_info *sta; |
| u8 remote_addr[ETH_ALEN]; |
| }; |
| |
| struct ieee80211_if_vlan { |
| struct list_head list; |
| }; |
| |
| struct mesh_stats { |
| __u32 fwded_frames; /* Mesh 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; |
| }; |
| |
| struct mesh_config { |
| /* Timeouts in ms */ |
| /* Mesh plink management parameters */ |
| u16 dot11MeshRetryTimeout; |
| u16 dot11MeshConfirmTimeout; |
| u16 dot11MeshHoldingTimeout; |
| u16 dot11MeshMaxPeerLinks; |
| u8 dot11MeshMaxRetries; |
| u8 dot11MeshTTL; |
| bool auto_open_plinks; |
| /* HWMP parameters */ |
| u8 dot11MeshHWMPmaxPREQretries; |
| u32 path_refresh_time; |
| u16 min_discovery_timeout; |
| u32 dot11MeshHWMPactivePathTimeout; |
| u16 dot11MeshHWMPpreqMinInterval; |
| u16 dot11MeshHWMPnetDiameterTraversalTime; |
| }; |
| |
| |
| /* flags used in struct ieee80211_if_sta.flags */ |
| #define IEEE80211_STA_SSID_SET BIT(0) |
| #define IEEE80211_STA_BSSID_SET BIT(1) |
| #define IEEE80211_STA_PREV_BSSID_SET BIT(2) |
| #define IEEE80211_STA_AUTHENTICATED BIT(3) |
| #define IEEE80211_STA_ASSOCIATED BIT(4) |
| #define IEEE80211_STA_PROBEREQ_POLL BIT(5) |
| #define IEEE80211_STA_CREATE_IBSS BIT(6) |
| #define IEEE80211_STA_MIXED_CELL BIT(7) |
| #define IEEE80211_STA_WMM_ENABLED BIT(8) |
| #define IEEE80211_STA_AUTO_SSID_SEL BIT(10) |
| #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11) |
| #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12) |
| #define IEEE80211_STA_PRIVACY_INVOKED BIT(13) |
| /* flags for MLME request */ |
| #define IEEE80211_STA_REQ_SCAN 0 |
| #define IEEE80211_STA_REQ_DIRECT_PROBE 1 |
| #define IEEE80211_STA_REQ_AUTH 2 |
| #define IEEE80211_STA_REQ_RUN 3 |
| |
| /* STA/IBSS MLME states */ |
| enum ieee80211_sta_mlme_state { |
| IEEE80211_STA_MLME_DISABLED, |
| IEEE80211_STA_MLME_DIRECT_PROBE, |
| IEEE80211_STA_MLME_AUTHENTICATE, |
| IEEE80211_STA_MLME_ASSOCIATE, |
| IEEE80211_STA_MLME_ASSOCIATED, |
| IEEE80211_STA_MLME_IBSS_SEARCH, |
| IEEE80211_STA_MLME_IBSS_JOINED, |
| }; |
| |
| /* bitfield of allowed auth algs */ |
| #define IEEE80211_AUTH_ALG_OPEN BIT(0) |
| #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) |
| #define IEEE80211_AUTH_ALG_LEAP BIT(2) |
| |
| struct ieee80211_if_sta { |
| struct timer_list timer; |
| struct work_struct work; |
| u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
| u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| enum ieee80211_sta_mlme_state state; |
| size_t ssid_len; |
| u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; |
| size_t scan_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; |
| |
| struct sk_buff_head skb_queue; |
| |
| int assoc_scan_tries; /* number of scans done pre-association */ |
| int direct_probe_tries; /* retries for direct probes */ |
| int auth_tries; /* retries for auth req */ |
| int assoc_tries; /* retries for assoc req */ |
| |
| unsigned long request; |
| |
| unsigned long last_probe; |
| |
| unsigned int flags; |
| |
| 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[IEEE80211_NUM_BANDS]; |
| |
| int wmm_last_param_set; |
| }; |
| |
| struct ieee80211_if_mesh { |
| struct work_struct work; |
| struct timer_list housekeeping_timer; |
| struct timer_list mesh_path_timer; |
| struct sk_buff_head skb_queue; |
| |
| bool housekeeping; |
| |
| u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; |
| size_t mesh_id_len; |
| /* Active Path Selection Protocol Identifier */ |
| u8 mesh_pp_id[4]; |
| /* Active Path Selection Metric Identifier */ |
| u8 mesh_pm_id[4]; |
| /* Congestion Control Mode Identifier */ |
| u8 mesh_cc_id[4]; |
| /* Local mesh Destination Sequence Number */ |
| u32 dsn; |
| /* Last used PREQ ID */ |
| u32 preq_id; |
| atomic_t mpaths; |
| /* Timestamp of last DSN update */ |
| unsigned long last_dsn_update; |
| /* Timestamp of last DSN 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; |
| }; |
| |
| #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_USERSPACE_MLME: userspace MLME is active |
| * @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_USERSPACE_MLME = BIT(2), |
| IEEE80211_SDATA_OPERATING_GMODE = BIT(3), |
| IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4), |
| }; |
| |
| 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; |
| |
| int drop_unencrypted; |
| |
| /* Fragment table for host-based reassembly */ |
| struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; |
| unsigned int fragment_next; |
| |
| #define NUM_DEFAULT_KEYS 4 |
| struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; |
| struct ieee80211_key *default_key; |
| |
| /* BSS configuration for this interface. */ |
| struct ieee80211_bss_conf bss_conf; |
| |
| /* |
| * 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; |
| |
| int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ |
| int max_ratectrl_rateidx; /* max TX rateidx for rate control */ |
| |
| union { |
| struct ieee80211_if_ap ap; |
| struct ieee80211_if_wds wds; |
| struct ieee80211_if_vlan vlan; |
| struct ieee80211_if_sta sta; |
| #ifdef CONFIG_MAC80211_MESH |
| struct ieee80211_if_mesh mesh; |
| #endif |
| u32 mntr_flags; |
| } u; |
| |
| #ifdef CONFIG_MAC80211_DEBUGFS |
| struct dentry *debugfsdir; |
| union { |
| struct { |
| struct dentry *drop_unencrypted; |
| struct dentry *state; |
| struct dentry *bssid; |
| struct dentry *prev_bssid; |
| struct dentry *ssid_len; |
| struct dentry *aid; |
| struct dentry *ap_capab; |
| struct dentry *capab; |
| struct dentry *extra_ie_len; |
| struct dentry *auth_tries; |
| struct dentry *assoc_tries; |
| struct dentry *auth_algs; |
| struct dentry *auth_alg; |
| struct dentry *auth_transaction; |
| struct dentry *flags; |
| struct dentry *force_unicast_rateidx; |
| struct dentry *max_ratectrl_rateidx; |
| } sta; |
| struct { |
| struct dentry *drop_unencrypted; |
| struct dentry *num_sta_ps; |
| struct dentry *dtim_count; |
| struct dentry *force_unicast_rateidx; |
| struct dentry *max_ratectrl_rateidx; |
| struct dentry *num_buffered_multicast; |
| } ap; |
| struct { |
| struct dentry *drop_unencrypted; |
| struct dentry *peer; |
| struct dentry *force_unicast_rateidx; |
| struct dentry *max_ratectrl_rateidx; |
| } wds; |
| struct { |
| struct dentry *drop_unencrypted; |
| struct dentry *force_unicast_rateidx; |
| struct dentry *max_ratectrl_rateidx; |
| } vlan; |
| struct { |
| struct dentry *mode; |
| } monitor; |
| } debugfs; |
| struct { |
| struct dentry *default_key; |
| } common_debugfs; |
| |
| #ifdef CONFIG_MAC80211_MESH |
| struct dentry *mesh_stats_dir; |
| struct { |
| struct dentry *fwded_frames; |
| struct dentry *dropped_frames_ttl; |
| struct dentry *dropped_frames_no_route; |
| struct dentry *estab_plinks; |
| struct timer_list mesh_path_timer; |
| } mesh_stats; |
| |
| struct dentry *mesh_config_dir; |
| struct { |
| struct dentry *dot11MeshRetryTimeout; |
| struct dentry *dot11MeshConfirmTimeout; |
| struct dentry *dot11MeshHoldingTimeout; |
| struct dentry *dot11MeshMaxRetries; |
| struct dentry *dot11MeshTTL; |
| struct dentry *auto_open_plinks; |
| struct dentry *dot11MeshMaxPeerLinks; |
| struct dentry *dot11MeshHWMPactivePathTimeout; |
| struct dentry *dot11MeshHWMPpreqMinInterval; |
| struct dentry *dot11MeshHWMPnetDiameterTraversalTime; |
| struct dentry *dot11MeshHWMPmaxPREQretries; |
| struct dentry *path_refresh_time; |
| struct dentry *min_discovery_timeout; |
| } mesh_config; |
| #endif |
| |
| #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); |
| } |
| |
| static inline void |
| ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata, |
| u8 mesh_id_len, u8 *mesh_id) |
| { |
| #ifdef CONFIG_MAC80211_MESH |
| struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| ifmsh->mesh_id_len = mesh_id_len; |
| memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len); |
| #else |
| WARN_ON(1); |
| #endif |
| } |
| |
| enum { |
| IEEE80211_RX_MSG = 1, |
| IEEE80211_TX_STATUS_MSG = 2, |
| IEEE80211_DELBA_MSG = 3, |
| IEEE80211_ADDBA_MSG = 4, |
| }; |
| |
| /* maximum number of hardware queues we support. */ |
| #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES) |
| |
| struct ieee80211_master_priv { |
| struct ieee80211_local *local; |
| }; |
| |
| 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; |
| |
| unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)]; |
| |
| struct net_device *mdev; /* wmaster# - "master" 802.11 device */ |
| int open_count; |
| int monitors, cooked_mntrs; |
| /* number of interfaces with corresponding FIF_ flags */ |
| int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss; |
| unsigned int filter_flags; /* FIF_* */ |
| struct iw_statistics wstats; |
| u8 wstats_flags; |
| bool tim_in_locked_section; /* see ieee80211_beacon_get() */ |
| int tx_headroom; /* required headroom for hardware/radiotap */ |
| |
| /* 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; |
| |
| /* Station data */ |
| /* |
| * The lock only protects the list, hash, timer and counter |
| * against manipulation, reads are done in RCU. Additionally, |
| * the lock protects each BSS's TIM bitmap. |
| */ |
| spinlock_t sta_lock; |
| unsigned long num_sta; |
| struct list_head sta_list; |
| struct list_head sta_flush_list; |
| struct work_struct sta_flush_work; |
| struct sta_info *sta_hash[STA_HASH_SIZE]; |
| struct timer_list sta_cleanup; |
| |
| unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)]; |
| unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)]; |
| struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES]; |
| struct tasklet_struct tx_pending_tasklet; |
| |
| /* number of interfaces with corresponding IFF_ flags */ |
| atomic_t iff_allmultis, iff_promiscs; |
| |
| struct rate_control_ref *rate_ctrl; |
| |
| int rts_threshold; |
| int fragmentation_threshold; |
| int short_retry_limit; /* dot11ShortRetryLimit */ |
| int long_retry_limit; /* dot11LongRetryLimit */ |
| |
| struct crypto_blkcipher *wep_tx_tfm; |
| struct crypto_blkcipher *wep_rx_tfm; |
| u32 wep_iv; |
| |
| struct list_head interfaces; |
| |
| /* |
| * Key lock, protects sdata's key_list and sta_info's |
| * key pointers (write access, they're RCU.) |
| */ |
| spinlock_t key_lock; |
| |
| |
| /* Scanning and BSS list */ |
| bool sw_scanning, hw_scanning; |
| int scan_channel_idx; |
| enum ieee80211_band scan_band; |
| |
| enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; |
| unsigned long last_scan_completed; |
| struct delayed_work scan_work; |
| struct ieee80211_sub_if_data *scan_sdata; |
| struct ieee80211_channel *oper_channel, *scan_channel; |
| u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; |
| size_t scan_ssid_len; |
| struct list_head bss_list; |
| struct ieee80211_bss *bss_hash[STA_HASH_SIZE]; |
| spinlock_t bss_lock; |
| |
| /* SNMP counters */ |
| /* dot11CountersTable */ |
| u32 dot11TransmittedFragmentCount; |
| u32 dot11MulticastTransmittedFrameCount; |
| u32 dot11FailedCount; |
| u32 dot11RetryCount; |
| u32 dot11MultipleRetryCount; |
| u32 dot11FrameDuplicateCount; |
| u32 dot11ReceivedFragmentCount; |
| u32 dot11MulticastReceivedFrameCount; |
| u32 dot11TransmittedFrameCount; |
| u32 dot11WEPUndecryptableCount; |
| |
| #ifdef CONFIG_MAC80211_LEDS |
| int tx_led_counter, rx_led_counter; |
| struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; |
| char tx_led_name[32], rx_led_name[32], |
| assoc_led_name[32], radio_led_name[32]; |
| #endif |
| |
| #ifdef CONFIG_MAC80211_DEBUGFS |
| struct work_struct sta_debugfs_add; |
| #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)) */ |
| |
| #ifdef CONFIG_MAC80211_DEBUGFS |
| struct local_debugfsdentries { |
| struct dentry *rcdir; |
| struct dentry *rcname; |
| struct dentry *frequency; |
| struct dentry *antenna_sel_tx; |
| struct dentry *antenna_sel_rx; |
| struct dentry *rts_threshold; |
| struct dentry *fragmentation_threshold; |
| struct dentry *short_retry_limit; |
| struct dentry *long_retry_limit; |
| struct dentry *total_ps_buffered; |
| struct dentry *wep_iv; |
| struct dentry *statistics; |
| struct local_debugfsdentries_statsdentries { |
| struct dentry *transmitted_fragment_count; |
| struct dentry *multicast_transmitted_frame_count; |
| struct dentry *failed_count; |
| struct dentry *retry_count; |
| struct dentry *multiple_retry_count; |
| struct dentry *frame_duplicate_count; |
| struct dentry *received_fragment_count; |
| struct dentry *multicast_received_frame_count; |
| struct dentry *transmitted_frame_count; |
| struct dentry *wep_undecryptable_count; |
| struct dentry *num_scans; |
| #ifdef CONFIG_MAC80211_DEBUG_COUNTERS |
| struct dentry *tx_handlers_drop; |
| struct dentry *tx_handlers_queued; |
| struct dentry *tx_handlers_drop_unencrypted; |
| struct dentry *tx_handlers_drop_fragment; |
| struct dentry *tx_handlers_drop_wep; |
| struct dentry *tx_handlers_drop_not_assoc; |
| struct dentry *tx_handlers_drop_unauth_port; |
| struct dentry *rx_handlers_drop; |
| struct dentry *rx_handlers_queued; |
| struct dentry *rx_handlers_drop_nullfunc; |
| struct dentry *rx_handlers_drop_defrag; |
| struct dentry *rx_handlers_drop_short; |
| struct dentry *rx_handlers_drop_passive_scan; |
| struct dentry *tx_expand_skb_head; |
| struct dentry *tx_expand_skb_head_cloned; |
| struct dentry *rx_expand_skb_head; |
| struct dentry *rx_expand_skb_head2; |
| struct dentry *rx_handlers_fragments; |
| struct dentry *tx_status_drop; |
| #endif |
| struct dentry *dot11ACKFailureCount; |
| struct dentry *dot11RTSFailureCount; |
| struct dentry *dot11FCSErrorCount; |
| struct dentry *dot11RTSSuccessCount; |
| } stats; |
| struct dentry *stations; |
| struct dentry *keys; |
| } debugfs; |
| #endif |
| }; |
| |
| static inline struct ieee80211_sub_if_data * |
| IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) |
| { |
| struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| |
| BUG_ON(!local || local->mdev == 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; |
| u8 *tim; |
| u8 *ibss_params; |
| u8 *challenge; |
| u8 *wpa; |
| u8 *rsn; |
| u8 *erp_info; |
| u8 *ext_supp_rates; |
| u8 *wmm_info; |
| u8 *wmm_param; |
| u8 *ht_cap_elem; |
| u8 *ht_info_elem; |
| u8 *mesh_config; |
| u8 *mesh_id; |
| u8 *peer_link; |
| u8 *preq; |
| u8 *prep; |
| u8 *perr; |
| u8 *ch_switch_elem; |
| u8 *country_elem; |
| u8 *pwr_constr_elem; |
| u8 *quiet_elem; /* first quite element */ |
| |
| /* 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 ht_cap_elem_len; |
| u8 ht_info_elem_len; |
| u8 mesh_config_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 */ |
| }; |
| |
| 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; |
| } |
| |
| struct sta_attribute { |
| struct attribute attr; |
| ssize_t (*show)(const struct sta_info *, char *buf); |
| ssize_t (*store)(struct sta_info *, const char *buf, size_t count); |
| }; |
| |
| 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); |
| int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed); |
| void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); |
| u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht, |
| struct ieee80211_ht_info *req_ht_cap, |
| struct ieee80211_ht_bss_info *req_bss_cap); |
| void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
| u32 changed); |
| void ieee80211_configure_filter(struct ieee80211_local *local); |
| |
| /* wireless extensions */ |
| extern const struct iw_handler_def ieee80211_iw_handler_def; |
| |
| /* STA/IBSS code */ |
| void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); |
| void ieee80211_scan_work(struct work_struct *work); |
| void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, |
| struct ieee80211_rx_status *rx_status); |
| int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len); |
| int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len); |
| int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid); |
| void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_if_sta *ifsta); |
| struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb, u8 *bssid, |
| u8 *addr, u64 supp_rates); |
| int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason); |
| int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason); |
| u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); |
| u64 ieee80211_sta_get_rates(struct ieee80211_local *local, |
| struct ieee802_11_elems *elems, |
| enum ieee80211_band band); |
| void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, |
| u8 *ssid, size_t ssid_len); |
| |
| /* scan/BSS handling */ |
| int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, |
| u8 *ssid, size_t ssid_len); |
| int ieee80211_scan_results(struct ieee80211_local *local, |
| struct iw_request_info *info, |
| char *buf, size_t len); |
| ieee80211_rx_result |
| ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, |
| struct sk_buff *skb, |
| struct ieee80211_rx_status *rx_status); |
| void ieee80211_rx_bss_list_init(struct ieee80211_local *local); |
| void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local); |
| int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, |
| char *ie, size_t len); |
| |
| void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); |
| int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata, |
| u8 *ssid, size_t ssid_len); |
| 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, |
| int freq, bool beacon); |
| struct ieee80211_bss * |
| ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq, |
| u8 *ssid, u8 ssid_len); |
| 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); |
| |
| /* interface handling */ |
| 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); |
| |
| /* tx handling */ |
| void ieee80211_clear_tx_pending(struct ieee80211_local *local); |
| void ieee80211_tx_pending(unsigned long data); |
| int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); |
| |
| /* HT */ |
| int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, |
| struct ieee80211_ht_info *ht_info); |
| int ieee80211_ht_addt_info_ie_to_ht_bss_info( |
| struct ieee80211_ht_addt_info *ht_add_info_ie, |
| struct ieee80211_ht_bss_info *bss_info); |
| void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn); |
| |
| void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da, |
| u16 tid, u16 initiator, u16 reason); |
| void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr); |
| 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); |
| |
| /* Spectrum management */ |
| void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, |
| struct ieee80211_mgmt *mgmt, |
| size_t len); |
| |
| /* utility functions/constants */ |
| extern void *mac80211_wiphy_privid; /* for wiphy privid */ |
| extern const unsigned char rfc1042_header[6]; |
| extern const unsigned char bridge_tunnel_header[6]; |
| 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); |
| 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, |
| int encrypt); |
| void ieee802_11_parse_elems(u8 *start, size_t len, |
| struct ieee802_11_elems *elems); |
| int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq); |
| u64 ieee80211_mandatory_rates(struct ieee80211_local *local, |
| enum ieee80211_band band); |
| |
| #ifdef CONFIG_MAC80211_NOINLINE |
| #define debug_noinline noinline |
| #else |
| #define debug_noinline |
| #endif |
| |
| #endif /* IEEE80211_I_H */ |