X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/a4d094be2ac657698039b16163822b8ccd32f0d9..5fe95d1b660bed238f8f53d6c7360f44b5ce9824:/package/mac80211/src/mac80211/michael.c

diff --git a/package/mac80211/src/mac80211/michael.c b/package/mac80211/src/mac80211/michael.c
deleted file mode 100644
index 0f844f789..000000000
--- a/package/mac80211/src/mac80211/michael.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Michael MIC implementation - optimized for TKIP MIC operations
- * Copyright 2002-2003, Instant802 Networks, Inc.
- *
- * 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.
- */
-
-#include <linux/types.h>
-
-#include "michael.h"
-
-static inline u32 rotr(u32 val, int bits)
-{
-	return (val >> bits) | (val << (32 - bits));
-}
-
-
-static inline u32 rotl(u32 val, int bits)
-{
-	return (val << bits) | (val >> (32 - bits));
-}
-
-
-static inline u32 xswap(u32 val)
-{
-	return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
-}
-
-
-#define michael_block(l, r) \
-do { \
-	r ^= rotl(l, 17); \
-	l += r; \
-	r ^= xswap(l); \
-	l += r; \
-	r ^= rotl(l, 3); \
-	l += r; \
-	r ^= rotr(l, 2); \
-	l += r; \
-} while (0)
-
-
-static inline u32 michael_get32(u8 *data)
-{
-	return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
-}
-
-
-static inline void michael_put32(u32 val, u8 *data)
-{
-	data[0] = val & 0xff;
-	data[1] = (val >> 8) & 0xff;
-	data[2] = (val >> 16) & 0xff;
-	data[3] = (val >> 24) & 0xff;
-}
-
-
-void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
-		 u8 *data, size_t data_len, u8 *mic)
-{
-	u32 l, r, val;
-	size_t block, blocks, left;
-
-	l = michael_get32(key);
-	r = michael_get32(key + 4);
-
-	/* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
-	 * calculation, but it is _not_ transmitted */
-	l ^= michael_get32(da);
-	michael_block(l, r);
-	l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
-	michael_block(l, r);
-	l ^= michael_get32(&sa[2]);
-	michael_block(l, r);
-	l ^= priority;
-	michael_block(l, r);
-
-	/* Real data */
-	blocks = data_len / 4;
-	left = data_len % 4;
-
-	for (block = 0; block < blocks; block++) {
-		l ^= michael_get32(&data[block * 4]);
-		michael_block(l, r);
-	}
-
-	/* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
-	 * total length a multiple of 4. */
-	val = 0x5a;
-	while (left > 0) {
-		val <<= 8;
-		left--;
-		val |= data[blocks * 4 + left];
-	}
-	l ^= val;
-	michael_block(l, r);
-	/* last block is zero, so l ^ 0 = l */
-	michael_block(l, r);
-
-	michael_put32(l, mic);
-	michael_put32(r, mic + 4);
-}