Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 108 insertions, 0 deletions

diff --git a/include/net/ieee80211_crypt.h b/include/net/ieee80211_crypt.h
new file mode 100644
index 0000000..b3d65e0
--- /dev/null
+++ b/include/net/ieee80211_crypt.h
@@ -0,0 +1,108 @@
+/*
+ * 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
+ *
+ * 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/types.h>
+#include <linux/list.h>
+#include <net/ieee80211.h>
+#include <asm/atomic.h>
+
+enum {
+	IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0),
+};
+
+struct sk_buff;
+struct module;
+
+struct ieee80211_crypto_ops {
+	const char *name;
+	struct list_head list;
+
+	/* 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);
+
+	int (*build_iv) (struct sk_buff * skb, int hdr_len,
+			 u8 *key, int keylen, 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);
+
+	/* Crypto specific flag get/set for configuration settings */
+	unsigned long (*get_flags) (void *priv);
+	unsigned long (*set_flags) (unsigned long flags, 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_mpdu_prefix_len, extra_mpdu_postfix_len;
+	int extra_msdu_prefix_len, extra_msdu_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;
+};
+
+struct ieee80211_device;
+
+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);
+void ieee80211_crypt_quiescing(struct ieee80211_device *ieee);
+
+#endif