// SPDX-License-Identifier: GPL-2.0-only /****************************************************************************** * * Copyright(c) 2003 - 2014, 2022 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. *****************************************************************************/ #include <linux/etherdevice.h> #include <net/mac80211.h> #include "iwl-trans.h" #include "dev.h" #include "agn.h" const u8 iwl_bcast_addr[ETH_ALEN] = …; static int iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) { … } static void iwl_process_add_sta_resp(struct iwl_priv *priv, struct iwl_rx_packet *pkt) { … } void iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb) { … } int iwl_send_add_sta(struct iwl_priv *priv, struct iwl_addsta_cmd *sta, u8 flags) { … } bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_sta *sta) { … } static void iwl_sta_calc_ht_flags(struct iwl_priv *priv, struct ieee80211_sta *sta, struct iwl_rxon_context *ctx, __le32 *flags, __le32 *mask) { … } int iwl_sta_update_ht(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_sta *sta) { … } static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, struct ieee80211_sta *sta, struct iwl_rxon_context *ctx) { … } /* * iwl_prep_station - Prepare station information for addition * * should be called with sta_lock held */ u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, const u8 *addr, bool is_ap, struct ieee80211_sta *sta) { … } #define STA_WAIT_TIMEOUT … /* * iwl_add_station_common - */ int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, const u8 *addr, bool is_ap, struct ieee80211_sta *sta, u8 *sta_id_r) { … } /* * iwl_sta_ucode_deactivate - deactivate ucode status for a station */ static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id) { … } static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, int sta_id, bool temporary) { … } /* * iwl_remove_station - Remove driver's knowledge of station. */ int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, const u8 *addr) { … } void iwl_deactivate_station(struct iwl_priv *priv, const u8 sta_id, const u8 *addr) { … } static void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id, struct iwl_link_quality_cmd *link_cmd) { … } /* * iwl_clear_ucode_stations - clear ucode station table bits * * This function clears all the bits in the driver indicating * which stations are active in the ucode. Call when something * other than explicit station management would cause this in * the ucode, e.g. unassociated RXON. */ void iwl_clear_ucode_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { … } /* * iwl_restore_stations() - Restore driver known stations to device * * All stations considered active by driver, but not present in ucode, is * restored. * * Function sleeps. */ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { … } int iwl_get_free_ucode_key_offset(struct iwl_priv *priv) { … } void iwl_dealloc_bcast_stations(struct iwl_priv *priv) { … } #ifdef CONFIG_IWLWIFI_DEBUG static void iwl_dump_lq_cmd(struct iwl_priv *priv, struct iwl_link_quality_cmd *lq) { … } #else static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, struct iwl_link_quality_cmd *lq) { } #endif /* * is_lq_table_valid() - Test one aspect of LQ cmd for validity * * It sometimes happens when a HT rate has been in use and we * loose connectivity with AP then mac80211 will first tell us that the * current channel is not HT anymore before removing the station. In such a * scenario the RXON flags will be updated to indicate we are not * communicating HT anymore, but the LQ command may still contain HT rates. * Test for this to prevent driver from sending LQ command between the time * RXON flags are updated and when LQ command is updated. */ static bool is_lq_table_valid(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct iwl_link_quality_cmd *lq) { … } /* * iwl_send_lq_cmd() - Send link quality command * @init: This command is sent as part of station initialization right * after station has been added. * * The link quality command is sent as the last step of station creation. * This is the special case in which init is set and we call a callback in * this case to clear the state indicating that station creation is in * progress. */ int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct iwl_link_quality_cmd *lq, u8 flags, bool init) { … } static struct iwl_link_quality_cmd * iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, u8 sta_id) { … } /* * iwlagn_add_bssid_station - Add the special IBSS BSSID station * * Function sleeps. */ int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, const u8 *addr, u8 *sta_id_r) { … } /* * static WEP keys * * For each context, the device has a table of 4 static WEP keys * (one for each key index) that is updated with the following * commands. */ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, bool send_if_empty) { … } int iwl_restore_default_wep_keys(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { … } int iwl_remove_default_wep_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_key_conf *keyconf) { … } int iwl_set_default_wep_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_key_conf *keyconf) { … } /* * dynamic (per-station) keys * * The dynamic keys are a little more complicated. The device has * a key cache of up to STA_KEY_MAX_NUM/STA_KEY_MAX_NUM_PAN keys. * These are linked to stations by a table that contains an index * into the key table for each station/key index/{mcast,unicast}, * i.e. it's basically an array of pointers like this: * key_offset_t key_mapping[NUM_STATIONS][4][2]; * (it really works differently, but you can think of it as such) * * The key uploading and linking happens in the same command, the * add station command with STA_MODIFY_KEY_MASK. */ static u8 iwlagn_key_sta_id(struct iwl_priv *priv, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { … } static int iwlagn_send_sta_key(struct iwl_priv *priv, struct ieee80211_key_conf *keyconf, u8 sta_id, u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags) { … } void iwl_update_tkip_key(struct iwl_priv *priv, struct ieee80211_vif *vif, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key) { … } int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta) { … } int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta) { … } /* * iwlagn_alloc_bcast_station - add broadcast station into driver's station table. * * This adds the broadcast station into the driver's station table * and marks it driver active, so that it will be restored to the * device at the next best time. */ int iwlagn_alloc_bcast_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { … } /* * iwl_update_bcast_station - update broadcast station's LQ command * * Only used by iwlagn. Placed here to have all bcast station management * code together. */ int iwl_update_bcast_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { … } int iwl_update_bcast_stations(struct iwl_priv *priv) { … } /* * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table */ int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) { … } int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, int tid, u16 ssn) { … } int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, int tid) { … } void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt) { … }
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