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/*
* lib80211.h -- common bits for IEEE802.11 wireless drivers
*
* Copyright (c) 2008, John W. Linville <linville@tuxdriver.com>
*
* Some bits copied from old ieee80211 component, w/ original copyright
* notices below:
*
* Original code based on Host AP (software wireless LAN access point) driver
* for Intersil Prism2/2.5/3.
*
* Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
* <j@w1.fi>
* Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
*
* Adaption to a generic IEEE 802.11 stack by James Ketrenos
* <jketreno@linux.intel.com>
*
* Copyright (c) 2004, Intel Corporation
*
*/
#ifndef LIB80211_H
#define LIB80211_H
#include <linux/types.h>
#include <linux/list.h>
#include <linux/atomic.h>
#include <linux/if.h>
#include <linux/skbuff.h>
#include <linux/ieee80211.h>
#include <linux/timer.h>
const char *print_ssid(char *buf, const char *ssid, u8 ssid_len);
#define DECLARE_SSID_BUF(var) char var[IEEE80211_MAX_SSID_LEN * 4 + 1] __maybe_unused
#define NUM_WEP_KEYS 4
enum {
IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0),
};
struct module;
struct lib80211_crypto_ops {
const char *name;
struct list_head list;
void *(*init) (int keyidx);
void (*deinit) (void *priv);
int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv);
int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len,
void *priv);
int (*set_key) (void *key, int len, u8 * seq, void *priv);
int (*get_key) (void *key, int len, u8 * seq, void *priv);
char *(*print_stats) (char *p, void *priv);
unsigned long (*get_flags) (void *priv);
unsigned long (*set_flags) (unsigned long flags, void *priv);
int extra_mpdu_prefix_len, extra_mpdu_postfix_len;
int extra_msdu_prefix_len, extra_msdu_postfix_len;
struct module *owner;
};
struct lib80211_crypt_data {
struct list_head list;
struct lib80211_crypto_ops *ops;
void *priv;
atomic_t refcnt;
};
struct lib80211_crypt_info {
char *name;
spinlock_t *lock;
struct lib80211_crypt_data *crypt[NUM_WEP_KEYS];
int tx_keyidx;
struct list_head crypt_deinit_list;
struct timer_list crypt_deinit_timer;
int crypt_quiesced;
};
int lib80211_crypt_info_init(struct lib80211_crypt_info *info, char *name,
spinlock_t *lock);
void lib80211_crypt_info_free(struct lib80211_crypt_info *info);
int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops);
int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops);
struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name);
void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
struct lib80211_crypt_data **crypt);
#endif
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