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-rw-r--r--target/linux/package/ieee80211-dscape/src/michael.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/target/linux/package/ieee80211-dscape/src/michael.c b/target/linux/package/ieee80211-dscape/src/michael.c
deleted file mode 100644
index 0f844f7895..0000000000
--- a/target/linux/package/ieee80211-dscape/src/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);
-}