X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Flib80211.h;h=fb4e2784857d93c23b5358803e7591345073f499;hb=b5bb14386eabcb4229ade2bc0a2b237ca166d37d;hp=91a64f358cef57fcdfb95bb360aba96d3f7f2ae2;hpb=7e272fcff6f0a32a3d46e600ea5895f6058f4e2d;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/net/lib80211.h b/include/net/lib80211.h
index 91a64f3..fb4e278 100644
--- a/include/net/lib80211.h
+++ b/include/net/lib80211.h
@@ -3,29 +3,127 @@
  *
  * 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
 
-/* escape_ssid() is intended to be used in debug (and possibly error)
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <asm/atomic.h>
+#include <linux/if.h>
+#include <linux/skbuff.h>
+#include <linux/ieee80211.h>
+#include <linux/timer.h>
+/* print_ssid() is intended to be used in debug (and possibly error)
  * messages. It should never be used for passing ssid to user space. */
-const char *escape_ssid(const char *ssid, u8 ssid_len);
-
-static inline int is_empty_ssid(const char *ssid, int ssid_len)
-{
-	/* Single white space is for Linksys APs */
-	if (ssid_len == 1 && ssid[0] == ' ')
-		return 1;
-
-	/* Otherwise, if the entire ssid is 0, we assume it is hidden */
-	while (ssid_len) {
-		ssid_len--;
-		if (ssid[ssid_len] != '\0')
-			return 0;
-	}
-
-	return 1;
-}
+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 lib80211_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 lib80211_crypt_data {
+	struct list_head list;	/* delayed deletion list */
+	struct lib80211_crypto_ops *ops;
+	void *priv;
+	atomic_t refcnt;
+};
+
+struct lib80211_crypt_info {
+	char *name;
+	/* Most clients will already have a lock,
+	   so just point to that. */
+	spinlock_t *lock;
+
+	struct lib80211_crypt_data *crypt[NUM_WEP_KEYS];
+	int tx_keyidx;		/* default TX key index (crypt[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_deinit_entries(struct lib80211_crypt_info *, int);
+void lib80211_crypt_deinit_handler(unsigned long);
+void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
+				    struct lib80211_crypt_data **crypt);
+void lib80211_crypt_quiescing(struct lib80211_crypt_info *info);
 
 #endif /* LIB80211_H */