staging: vt6656: dead code remove micheal.c/h (08a90015) · Commits · github.com / kvm-riscv / linux

drivers/staging/vt6656/Makefile

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		@@ -15,7 +15,6 @@ vt6656_stage-y += main_usb.o \
		rc4.o \
		tether.o \
		key.o \
		michael.o \
		rf.o \
		usbpipe.o \
		channel.o \

drivers/staging/vt6656/dpc.c

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		@@ -43,7 +43,6 @@
		#include "bssdb.h"
		#include "mac.h"
		#include "baseband.h"
		#include "michael.h"
		#include "rf.h"
		#include "iowpa.h"
		#include "datarate.h"

drivers/staging/vt6656/michael.c

deleted100644 → 0

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		/*
		* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
		* All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program; if not, write to the Free Software Foundation, Inc.,
		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
		*
		*
		* File: michael.cpp
		*
		* Purpose: The implementation of LIST data structure.
		*
		* Author: Kyle Hsu
		*
		* Date: Sep 4, 2002
		*
		* Functions:
		* s_dwGetUINT32 - Convert from u8[] to u32 in a portable way
		* s_vPutUINT32 - Convert from u32 to u8[] in a portable way
		* s_vClear - Reset the state to the empty message.
		* s_vSetKey - Set the key.
		* MIC_vInit - Set the key.
		* s_vAppendByte - Append the byte to our word-sized buffer.
		* MIC_vAppend - call s_vAppendByte.
		* MIC_vGetMIC - Append the minimum padding and call s_vAppendByte.
		*
		* Revision History:
		*
		*/

		#include "tmacro.h"
		#include "michael.h"

		/*
		* static u32 s_dwGetUINT32(u8 * p); Get u32 from
		* 4 bytes LSByte first
		* static void s_vPutUINT32(u8* p, u32 val); Put u32 into
		* 4 bytes LSByte first
		*/
		static void s_vClear(void); /* Clear the internal message,
		* resets the object to the
		* state just after construction. */
		static void s_vSetKey(u32 dwK0, u32 dwK1);
		static void s_vAppendByte(u8 b); /* Add a single byte to the internal
		* message */

		static u32 L, R; /* Current state */
		static u32 K0, K1; /* Key */
		static u32 M; /* Message accumulator (single word) */
		static unsigned int nBytesInM; /* # bytes in M */

		/*
		static u32 s_dwGetUINT32 (u8 * p)
		// Convert from u8[] to u32 in a portable way
		{
		u32 res = 0;
		unsigned int i;
		for (i = 0; i < 4; i++)
		res \|= (p++) << (8i);
		return res;
		}

		static void s_vPutUINT32(u8 *p, u32 val)
		// Convert from u32 to u8[] in a portable way
		{
		unsigned int i;
		for (i = 0; i < 4; i++) {
		*p++ = (u8) (val & 0xff);
		val >>= 8;
		}
		}
		*/

		static void s_vClear(void)
		{
		/* Reset the state to the empty message. */
		L = K0;
		R = K1;
		nBytesInM = 0;
		M = 0;
		}

		static void s_vSetKey(u32 dwK0, u32 dwK1)
		{
		/* Set the key */
		K0 = dwK0;
		K1 = dwK1;
		/* and reset the message */
		s_vClear();
		}

		static void s_vAppendByte(u8 b)
		{
		/* Append the byte to our word-sized buffer */
		M \|= b << (8*nBytesInM);
		nBytesInM++;
		/* Process the word if it is full. */
		if (nBytesInM >= 4) {
		L ^= M;
		R ^= ROL32(L, 17);
		L += R;
		R ^= ((L & 0xff00ff00) >> 8) \| ((L & 0x00ff00ff) << 8);
		L += R;
		R ^= ROL32(L, 3);
		L += R;
		R ^= ROR32(L, 2);
		L += R;
		/* Clear the buffer */
		M = 0;
		nBytesInM = 0;
		}
		}

		void MIC_vInit(u32 dwK0, u32 dwK1)
		{
		/* Set the key */
		s_vSetKey(dwK0, dwK1);
		}

		void MIC_vUnInit(void)
		{
		/* Wipe the key material */
		K0 = 0;
		K1 = 0;

		/* And the other fields as well. */
		/* Note that this sets (L,R) to (K0,K1) which is just fine. */
		s_vClear();
		}

		void MIC_vAppend(u8 * src, unsigned int nBytes)
		{
		/* This is simple */
		while (nBytes > 0) {
		s_vAppendByte(*src++);
		nBytes--;
		}
		}

		void MIC_vGetMIC(u32 * pdwL, u32 * pdwR)
		{
		/* Append the minimum padding */
		s_vAppendByte(0x5a);
		s_vAppendByte(0);
		s_vAppendByte(0);
		s_vAppendByte(0);
		s_vAppendByte(0);
		/* and then zeroes until the length is a multiple of 4 */
		while (nBytesInM != 0)
		s_vAppendByte(0);
		/* The s_vAppendByte function has already computed the result. */
		*pdwL = L;
		*pdwR = R;
		/* Reset to the empty message. */
		s_vClear();
		}

drivers/staging/vt6656/michael.h

deleted100644 → 0

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		/*
		* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
		* All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation; either version 2 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License along
		* with this program; if not, write to the Free Software Foundation, Inc.,
		* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
		*
		*
		* File: Michael.h
		*
		* Purpose: Reference implementation for Michael
		* written by Niels Ferguson
		*
		* Author: Kyle Hsu
		*
		* Date: Jan 2, 2003
		*
		*/

		#ifndef __MICHAEL_H__
		#define __MICHAEL_H__

		#include <linux/types.h>

		void MIC_vInit(u32 dwK0, u32 dwK1);

		void MIC_vUnInit(void);

		// Append bytes to the message to be MICed
		void MIC_vAppend(u8 * src, unsigned int nBytes);

		// Get the MIC result. Destination should accept 8 bytes of result.
		// This also resets the message to empty.
		void MIC_vGetMIC(u32 * pdwL, u32 * pdwR);

		// Rotation functions on 32 bit values
		#define ROL32(A, n) \
		(((A) << (n)) \| (((A)>>(32-(n))) & ((1UL << (n)) - 1)))
		#define ROR32(A, n) ROL32((A), 32-(n))

		#endif /* __MICHAEL_H__ */

drivers/staging/vt6656/rxtx.c

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		@@ -49,7 +49,6 @@
		#include "card.h"
		#include "bssdb.h"
		#include "mac.h"
		#include "michael.h"
		#include "rf.h"
		#include "datarate.h"
		#include "usbpipe.h"