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authorRoman Yeryomin <roman@advem.lv>2012-09-13 00:40:35 +0300
committerRoman Yeryomin <roman@advem.lv>2012-12-03 00:13:21 +0200
commit5deb3317cb51ac52de922bb55f8492624018906d (patch)
treec2fbe6346699d9bb0f2100490c3029519bb8fde8 /target/linux/realtek/files/include/net80211/ieee80211_crypto.h
parent0239d37124f9184b478a42de8a7fa1bc85a6a6fe (diff)
Add realtek target files
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Diffstat (limited to 'target/linux/realtek/files/include/net80211/ieee80211_crypto.h')
-rw-r--r--target/linux/realtek/files/include/net80211/ieee80211_crypto.h205
1 files changed, 205 insertions, 0 deletions
diff --git a/target/linux/realtek/files/include/net80211/ieee80211_crypto.h b/target/linux/realtek/files/include/net80211/ieee80211_crypto.h
new file mode 100644
index 000000000..23d4c052a
--- /dev/null
+++ b/target/linux/realtek/files/include/net80211/ieee80211_crypto.h
@@ -0,0 +1,205 @@
+/*-
+ * Copyright (c) 2001 Atsushi Onoe
+ * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id: ieee80211_crypto.h 1441 2006-02-06 16:03:21Z mrenzmann $
+ */
+#ifndef _NET80211_IEEE80211_CRYPTO_H_
+#define _NET80211_IEEE80211_CRYPTO_H_
+
+/*
+ * 802.11 protocol crypto-related definitions.
+ */
+#define IEEE80211_KEYBUF_SIZE 16
+#define IEEE80211_MICBUF_SIZE (8 + 8) /* space for both tx+rx keys */
+#define IEEE80211_TID_SIZE 17 /* total number of TIDs */
+
+/*
+ * Old WEP-style key. Deprecated.
+ */
+struct ieee80211_wepkey {
+ u_int wk_len; /* key length in bytes */
+ u_int8_t wk_key[IEEE80211_KEYBUF_SIZE];
+};
+
+struct ieee80211_cipher;
+
+/*
+ * Crypto key state. There is sufficient room for all supported
+ * ciphers (see below). The underlying ciphers are handled
+ * separately through loadable cipher modules that register with
+ * the generic crypto support. A key has a reference to an instance
+ * of the cipher; any per-key state is hung off wk_private by the
+ * cipher when it is attached. Ciphers are automatically called
+ * to detach and cleanup any such state when the key is deleted.
+ *
+ * The generic crypto support handles encap/decap of cipher-related
+ * frame contents for both hardware- and software-based implementations.
+ * A key requiring software crypto support is automatically flagged and
+ * the cipher is expected to honor this and do the necessary work.
+ * Ciphers such as TKIP may also support mixed hardware/software
+ * encrypt/decrypt and MIC processing.
+ */
+/* XXX need key index typedef */
+/* XXX pack better? */
+/* XXX 48-bit rsc/tsc */
+struct ieee80211_key {
+ u_int8_t wk_keylen; /* key length in bytes */
+ u_int8_t wk_flags;
+#define IEEE80211_KEY_XMIT 0x01 /* key used for xmit */
+#define IEEE80211_KEY_RECV 0x02 /* key used for recv */
+#define IEEE80211_KEY_GROUP 0x04 /* key used for WPA group operation */
+#define IEEE80211_KEY_SWCRYPT 0x10 /* host-based encrypt/decrypt */
+#define IEEE80211_KEY_SWMIC 0x20 /* host-based enmic/demic */
+ u_int16_t wk_keyix; /* key index */
+ u_int8_t wk_key[IEEE80211_KEYBUF_SIZE+IEEE80211_MICBUF_SIZE];
+#define wk_txmic wk_key+IEEE80211_KEYBUF_SIZE+0 /* XXX can't () right */
+#define wk_rxmic wk_key+IEEE80211_KEYBUF_SIZE+8 /* XXX can't () right */
+ u_int64_t wk_keyrsc[IEEE80211_TID_SIZE]; /* key receive sequence counter */
+ u_int64_t wk_keytsc; /* key transmit sequence counter */
+ const struct ieee80211_cipher *wk_cipher;
+ void *wk_private; /* private cipher state */
+};
+#define IEEE80211_KEY_COMMON /* common flags passed in by apps */\
+ (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV | IEEE80211_KEY_GROUP)
+
+/*
+ * NB: these values are ordered carefully; there are lots of
+ * of implications in any reordering. In particular beware
+ * that 4 is not used to avoid conflicting with IEEE80211_F_PRIVACY.
+ */
+#define IEEE80211_CIPHER_WEP 0
+#define IEEE80211_CIPHER_TKIP 1
+#define IEEE80211_CIPHER_AES_OCB 2
+#define IEEE80211_CIPHER_AES_CCM 3
+#define IEEE80211_CIPHER_CKIP 5
+#define IEEE80211_CIPHER_NONE 6 /* pseudo value */
+
+#define IEEE80211_CIPHER_MAX (IEEE80211_CIPHER_NONE+1)
+
+#define IEEE80211_KEYIX_NONE ((u_int16_t) - 1)
+
+#if defined(__KERNEL__) || defined(_KERNEL)
+
+struct ieee80211com;
+struct ieee80211vap;
+struct ieee80211_node;
+struct sk_buff;
+
+void ieee80211_crypto_attach(struct ieee80211com *);
+void ieee80211_crypto_detach(struct ieee80211com *);
+void ieee80211_crypto_vattach(struct ieee80211vap *);
+void ieee80211_crypto_vdetach(struct ieee80211vap *);
+int ieee80211_crypto_newkey(struct ieee80211vap *, int, int,
+ struct ieee80211_key *);
+int ieee80211_crypto_delkey(struct ieee80211vap *, struct ieee80211_key *,
+ struct ieee80211_node *);
+int ieee80211_crypto_setkey(struct ieee80211vap *, struct ieee80211_key *,
+ const u_int8_t macaddr[IEEE80211_ADDR_LEN], struct ieee80211_node *);
+void ieee80211_crypto_delglobalkeys(struct ieee80211vap *);
+
+/*
+ * Template for a supported cipher. Ciphers register with the
+ * crypto code and are typically loaded as separate modules
+ * (the null cipher is always present).
+ * XXX may need refcnts
+ */
+struct ieee80211_cipher {
+ const char *ic_name; /* printable name */
+ u_int ic_cipher; /* IEEE80211_CIPHER_* */
+ u_int ic_header; /* size of privacy header (bytes) */
+ u_int ic_trailer; /* size of privacy trailer (bytes) */
+ u_int ic_miclen; /* size of mic trailer (bytes) */
+ void *(*ic_attach)(struct ieee80211vap *, struct ieee80211_key *);
+ void (*ic_detach)(struct ieee80211_key *);
+ int (*ic_setkey)(struct ieee80211_key *);
+ int (*ic_encap)(struct ieee80211_key *, struct sk_buff *, u_int8_t);
+ int (*ic_decap)(struct ieee80211_key *, struct sk_buff *, int);
+ int (*ic_enmic)(struct ieee80211_key *, struct sk_buff *, int);
+ int (*ic_demic)(struct ieee80211_key *, struct sk_buff *, int);
+};
+extern const struct ieee80211_cipher ieee80211_cipher_none;
+
+void ieee80211_crypto_register(const struct ieee80211_cipher *);
+void ieee80211_crypto_unregister(const struct ieee80211_cipher *);
+int ieee80211_crypto_available(u_int);
+
+struct ieee80211_key *ieee80211_crypto_encap(struct ieee80211_node *,
+ struct sk_buff *);
+struct ieee80211_key *ieee80211_crypto_decap(struct ieee80211_node *,
+ struct sk_buff *, int);
+
+/*
+ * Check and remove any MIC.
+ */
+static __inline int
+ieee80211_crypto_demic(struct ieee80211vap *vap, struct ieee80211_key *k,
+ struct sk_buff *skb, int hdrlen)
+{
+ const struct ieee80211_cipher *cip = k->wk_cipher;
+ return (cip->ic_miclen > 0 ? cip->ic_demic(k, skb, hdrlen) : 1);
+}
+
+/*
+ * Add any MIC.
+ */
+static __inline int
+ieee80211_crypto_enmic(struct ieee80211vap *vap, struct ieee80211_key *k,
+ struct sk_buff *skb, int force)
+{
+ const struct ieee80211_cipher *cip = k->wk_cipher;
+ return (cip->ic_miclen > 0 ? cip->ic_enmic(k, skb, force) : 1);
+}
+
+/*
+ * Reset key state to an unused state. The crypto
+ * key allocation mechanism ensures other state (e.g.
+ * key data) is properly setup before a key is used.
+ */
+static __inline void
+ieee80211_crypto_resetkey(struct ieee80211vap *vap, struct ieee80211_key *k,
+ u_int16_t ix)
+{
+ k->wk_cipher = &ieee80211_cipher_none;;
+ k->wk_private = k->wk_cipher->ic_attach(vap, k);
+ k->wk_keyix = ix;
+ k->wk_flags = IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV;
+}
+
+/*
+ * Crypto-related notification methods.
+ */
+void ieee80211_notify_replay_failure(struct ieee80211vap *,
+ const struct ieee80211_frame *, const struct ieee80211_key *,
+ u_int64_t rsc);
+void ieee80211_notify_michael_failure(struct ieee80211vap *,
+ const struct ieee80211_frame *, u_int keyix);
+#endif /* defined(__KERNEL__) || defined(_KERNEL) */
+#endif /* _NET80211_IEEE80211_CRYPTO_H_ */