#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/etherdevice.h>
+#include <net/ieee80211_radiotap.h>
#include <net/cfg80211.h>
#include <net/mac80211.h>
#include "key.h"
struct ieee80211_bss {
- /* Yes, this is a hack */
- struct cfg80211_bss cbss;
-
/* don't want to look up all the time */
size_t ssid_len;
u8 ssid[IEEE80211_MAX_SSID_LEN];
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;
/* 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)
+#define IEEE80211_RX_FRAGMENTED BIT(3)
+/* only add flags here that do not change with subframes of an aMPDU */
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;
unsigned int flags;
- int sent_ps_buffered;
int queue;
u32 tkip_iv32;
u16 tkip_iv16;
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 {
u8 flags;
};
-enum ieee80211_mgd_state {
- IEEE80211_MGD_STATE_IDLE,
- IEEE80211_MGD_STATE_PROBE,
- IEEE80211_MGD_STATE_AUTH,
- IEEE80211_MGD_STATE_ASSOC,
+enum ieee80211_work_type {
+ IEEE80211_WORK_ABORT,
+ IEEE80211_WORK_DIRECT_PROBE,
+ IEEE80211_WORK_AUTH,
+ IEEE80211_WORK_ASSOC,
+ IEEE80211_WORK_REMAIN_ON_CHANNEL,
};
-struct ieee80211_mgd_work {
+/**
+ * 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 ieee80211_bss *bss;
- int ie_len;
- u8 prev_bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- u8 ssid_len;
+
+ 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_mgd_state state;
- u16 auth_alg, auth_transaction;
+ enum ieee80211_work_type type;
- int tries;
+ u8 filter_ta[ETH_ALEN];
+
+ bool started;
- u8 key[WLAN_KEY_LEN_WEP104];
- u8 key_len, key_idx;
+ 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;
+ } assoc;
+ struct {
+ u32 duration;
+ bool started;
+ } remain;
+ };
+ int ie_len;
/* must be last */
- u8 ie[0]; /* for auth or assoc frame, not probe */
+ u8 ie[0];
};
/* flags used in struct ieee80211_if_managed.flags */
IEEE80211_STA_BEACON_POLL = BIT(0),
IEEE80211_STA_CONNECTION_POLL = BIT(1),
IEEE80211_STA_CONTROL_PORT = BIT(2),
- IEEE80211_STA_WMM_ENABLED = BIT(3),
IEEE80211_STA_DISABLE_11N = BIT(4),
IEEE80211_STA_CSA_RECEIVED = BIT(5),
IEEE80211_STA_MFP_ENABLED = BIT(6),
};
-/* flags for MLME request */
-enum ieee80211_sta_request {
- IEEE80211_STA_REQ_SCAN,
-};
-
struct ieee80211_if_managed {
struct timer_list timer;
struct timer_list conn_mon_timer;
int probe_send_count;
struct mutex mtx;
- struct ieee80211_bss *associated;
- struct ieee80211_mgd_work *old_associate_work;
- struct list_head work_list;
+ struct cfg80211_bss *associated;
u8 bssid[ETH_ALEN];
u16 aid;
- u16 capab;
struct sk_buff_head skb_queue;
unsigned long timers_running; /* used for quiesce/restart */
bool powersave; /* powersave requested for this iface */
-
- unsigned long request;
+ enum ieee80211_smps_mode req_smps, /* requested smps mode */
+ ap_smps; /* smps mode AP thinks we're in */
unsigned int flags;
} mfp; /* management frame protection */
int wmm_last_param_set;
+
+ u8 use_4addr;
};
enum ieee80211_ibss_request {
struct work_struct work;
struct timer_list housekeeping_timer;
struct timer_list mesh_path_timer;
+ struct timer_list mesh_path_root_timer;
struct sk_buff_head skb_queue;
unsigned long timers_running;
u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
size_t mesh_id_len;
/* Active Path Selection Protocol Identifier */
- u8 mesh_pp_id[4];
+ u8 mesh_pp_id;
/* Active Path Selection Metric Identifier */
- u8 mesh_pm_id[4];
+ u8 mesh_pm_id;
/* Congestion Control Mode Identifier */
- u8 mesh_cc_id[4];
+ u8 mesh_cc_id;
/* Synchronization Protocol Identifier */
- u8 mesh_sp_id[4];
+ u8 mesh_sp_id;
/* Authentication Protocol Identifier */
- u8 mesh_auth_id[4];
- /* Local mesh Destination Sequence Number */
- u32 dsn;
+ u8 mesh_auth_id;
+ /* Local mesh Sequence Number */
+ u32 sn;
/* 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 */
+ /* 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;
int drop_unencrypted;
+ char name[IFNAMSIZ];
+
/*
* keep track of whether the HT opmode (stored in
* vif.bss_info.ht_operation_mode) is valid.
*/
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 */
+ /* bitmap of allowed (non-MCS) rate indexes for rate control */
+ u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
union {
struct ieee80211_if_ap ap;
} u;
#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *debugfsdir;
- union {
- struct {
- struct dentry *drop_unencrypted;
- struct dentry *bssid;
- struct dentry *aid;
- struct dentry *capab;
- 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 *dir;
struct dentry *default_key;
struct dentry *default_mgmt_key;
- } common_debugfs;
-
-#ifdef CONFIG_MAC80211_MESH
- struct dentry *mesh_stats_dir;
- struct {
- struct dentry *fwded_mcast;
- struct dentry *fwded_unicast;
- 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
-
+ } debugfs;
#endif
/* must be last, dynamically sized area in this! */
struct ieee80211_vif vif;
const struct ieee80211_ops *ops;
+ /*
+ * work stuff, potentially off-channel (in the future)
+ */
+ struct mutex work_mtx;
+ 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()
/* number of interfaces with corresponding FIF_ flags */
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
unsigned int filter_flags; /* FIF_* */
- struct iw_statistics wstats;
/* 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 dev_addr_list *mc_list;
int mc_count;
unsigned long scanning;
struct cfg80211_ssid scan_ssid;
struct cfg80211_scan_request *int_scan_req;
- struct cfg80211_scan_request *scan_req;
+ struct cfg80211_scan_request *scan_req, *hw_scan_req;
struct ieee80211_channel *scan_channel;
- const u8 *orig_ies;
- int orig_ies_len;
+ enum ieee80211_band hw_scan_band;
int scan_channel_idx;
int scan_ies_len;
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;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
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.
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 *rcname;
- struct dentry *frequency;
- struct dentry *total_ps_buffered;
- struct dentry *wep_iv;
- struct dentry *tsf;
- struct dentry *queues;
- struct dentry *reset;
- struct dentry *noack;
- 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;
return netdev_priv(dev);
}
-/* this struct represents 802.11n's RA/TID combination */
+/* this struct represents 802.11n's RA/TID combination along with our vif */
struct ieee80211_ra_tid {
+ struct ieee80211_vif *vif;
u8 ra[ETH_ALEN];
u16 tid;
};
u8 *wmm_param;
struct ieee80211_ht_cap *ht_cap_elem;
struct ieee80211_ht_info *ht_info_elem;
- u8 *mesh_config;
+ 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 ext_supp_rates_len;
u8 wmm_info_len;
u8 wmm_param_len;
- u8 mesh_config_len;
u8 mesh_id_len;
u8 peer_link_len;
u8 preq_len;
void ieee80211_configure_filter(struct ieee80211_local *local);
u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
+extern bool ieee80211_disable_40mhz_24ghz;
+
/* STA code */
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
void ieee80211_rx_bss_put(struct ieee80211_local *local,
struct ieee80211_bss *bss);
+/* off-channel helpers */
+void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local);
+void ieee80211_offchannel_stop_station(struct ieee80211_local *local);
+void ieee80211_offchannel_return(struct ieee80211_local *local,
+ bool enable_beaconing);
+
/* 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);
u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
void ieee80211_recalc_idle(struct ieee80211_local *local);
+static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
+{
+ return netif_running(sdata->dev);
+}
+
/* tx handling */
void ieee80211_clear_tx_pending(struct ieee80211_local *local);
void ieee80211_tx_pending(unsigned long data);
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;
+} __attribute__ ((packed));
+
+
/* HT */
void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
struct ieee80211_ht_cap *ht_cap_ie,
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_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
u16 tid, u16 initiator, u16 reason);
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,
- int encrypt);
+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,
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);
+ const u8 *ie, size_t ie_len,
+ enum ieee80211_band band);
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);
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,
+ struct ieee80211_sub_if_data *forsdata);
+
+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);
#ifdef CONFIG_MAC80211_NOINLINE
#define debug_noinline noinline