diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ieee80211.h | 2 | ||||
| -rw-r--r-- | include/net/ieee80211_crypt.h | 86 |
2 files changed, 86 insertions, 2 deletions
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h index 151c4f20355..065b702df56 100644 --- a/include/net/ieee80211.h +++ b/include/net/ieee80211.h @@ -20,7 +20,6 @@ */ #ifndef IEEE80211_H #define IEEE80211_H - #include <linux/if_ether.h> /* ETH_ALEN */ #include <linux/kernel.h> /* ARRAY_SIZE */ @@ -850,5 +849,4 @@ static inline const char *escape_essid(const char *essid, u8 essid_len) { *d = '\0'; return escaped; } - #endif /* IEEE80211_H */ diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h new file mode 100644 index 00000000000..b58a3bcc0dc --- /dev/null +++ b/include/net/ieee80211_crypt.h @@ -0,0 +1,86 @@ +/* + * 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 + * <jkmaline@cc.hut.fi> + * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> + * + * Adaption to a generic IEEE 802.11 stack by James Ketrenos + * <jketreno@linux.intel.com> + * + * Copyright (c) 2004, Intel Corporation + * + * 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. See README and COPYING for + * more details. + */ + +/* + * This file defines the interface to the ieee80211 crypto module. + */ +#ifndef IEEE80211_CRYPT_H +#define IEEE80211_CRYPT_H + +#include <linux/skbuff.h> + +struct ieee80211_crypto_ops { + const char *name; + + /* init new crypto context (e.g., allocate private data space, + * select IV, etc.); returns NULL on failure or pointer to allocated + * private data on success */ + void * (*init)(int keyidx); + + /* deinitialize crypto context and free allocated private data */ + void (*deinit)(void *priv); + + /* encrypt/decrypt return < 0 on error or >= 0 on success. The return + * value from decrypt_mpdu is passed as the keyidx value for + * decrypt_msdu. skb must have enough head and tail room for the + * encryption; if not, error will be returned; these functions are + * called for all MPDUs (i.e., fragments). + */ + int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv); + + /* These functions are called for full MSDUs, i.e. full frames. + * These can be NULL if full MSDU operations are not needed. */ + 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); + + /* procfs handler for printing out key information and possible + * statistics */ + char * (*print_stats)(char *p, void *priv); + + /* maximum number of bytes added by encryption; encrypt buf is + * allocated with extra_prefix_len bytes, copy of in_buf, and + * extra_postfix_len; encrypt need not use all this space, but + * the result must start at the beginning of the buffer and correct + * length must be returned */ + int extra_prefix_len, extra_postfix_len; + + struct module *owner; +}; + +struct ieee80211_crypt_data { + struct list_head list; /* delayed deletion list */ + struct ieee80211_crypto_ops *ops; + void *priv; + atomic_t refcnt; +}; + +int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops); +int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops); +struct ieee80211_crypto_ops * ieee80211_get_crypto_ops(const char *name); +void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int); +void ieee80211_crypt_deinit_handler(unsigned long); +void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee, + struct ieee80211_crypt_data **crypt); + +#endif |