linux/net/mac80211/key.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2002-2004, Instant802 Networks, Inc.
 * Copyright 2005, Devicescape Software, Inc.
 * Copyright (C) 2019, 2022-2023 Intel Corporation
 */

#ifndef IEEE80211_KEY_H
#define IEEE80211_KEY_H

#include <linux/types.h>
#include <linux/list.h>
#include <linux/crypto.h>
#include <linux/rcupdate.h>
#include <crypto/arc4.h>
#include <net/mac80211.h>

#define NUM_DEFAULT_KEYS …
#define NUM_DEFAULT_MGMT_KEYS …
#define NUM_DEFAULT_BEACON_KEYS …
#define INVALID_PTK_KEYIDX …

struct ieee80211_local;
struct ieee80211_sub_if_data;
struct ieee80211_link_data;
struct sta_info;

/**
 * enum ieee80211_internal_key_flags - internal key flags
 *
 * @KEY_FLAG_UPLOADED_TO_HARDWARE: Indicates that this key is present
 *	in the hardware for TX crypto hardware acceleration.
 * @KEY_FLAG_TAINTED: Key is tainted and packets should be dropped.
 */
enum ieee80211_internal_key_flags { … };

enum ieee80211_internal_tkip_state { … };

struct tkip_ctx { … };

struct tkip_ctx_rx { … };

struct ieee80211_key { … };

struct ieee80211_key *
ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
		    const u8 *key_data,
		    size_t seq_len, const u8 *seq);
/*
 * Insert a key into data structures (sdata, sta if necessary)
 * to make it used, free old key. On failure, also free the new key.
 */
int ieee80211_key_link(struct ieee80211_key *key,
		       struct ieee80211_link_data *link,
		       struct sta_info *sta);
int ieee80211_set_tx_key(struct ieee80211_key *key);
void ieee80211_key_free(struct ieee80211_key *key, bool delay_tailroom);
void ieee80211_key_free_unused(struct ieee80211_key *key);
void ieee80211_set_default_key(struct ieee80211_link_data *link, int idx,
			       bool uni, bool multi);
void ieee80211_set_default_mgmt_key(struct ieee80211_link_data *link,
				    int idx);
void ieee80211_set_default_beacon_key(struct ieee80211_link_data *link,
				      int idx);
void ieee80211_remove_link_keys(struct ieee80211_link_data *link,
				struct list_head *keys);
void ieee80211_free_key_list(struct ieee80211_local *local,
			     struct list_head *keys);
void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata,
			 bool force_synchronize);
void ieee80211_free_sta_keys(struct ieee80211_local *local,
			     struct sta_info *sta);
void ieee80211_reenable_keys(struct ieee80211_sub_if_data *sdata);
int ieee80211_key_switch_links(struct ieee80211_sub_if_data *sdata,
			       unsigned long del_links_mask,
			       unsigned long add_links_mask);
void ieee80211_delayed_tailroom_dec(struct wiphy *wiphy,
				    struct wiphy_work *wk);

#endif /* IEEE80211_KEY_H */