Adding upstream version 0.9.2.upstream/0.9.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 287 insertions, 0 deletions

diff --git a/src/tpm2/Memory.c b/src/tpm2/Memory.c
new file mode 100644
index 0000000..e9472dd
--- /dev/null
+++ b/src/tpm2/Memory.c
@@ -0,0 +1,287 @@
+/********************************************************************************/
+/*										*/
+/*		 Miscellaneous Memory Manipulation Routines    			*/
+/*			     Written by Ken Goldman				*/
+/*		       IBM Thomas J. Watson Research Center			*/
+/*            $Id: Memory.c 1658 2021-01-22 23:14:01Z kgoldman $		*/
+/*										*/
+/*  Licenses and Notices							*/
+/*										*/
+/*  1. Copyright Licenses:							*/
+/*										*/
+/*  - Trusted Computing Group (TCG) grants to the user of the source code in	*/
+/*    this specification (the "Source Code") a worldwide, irrevocable, 		*/
+/*    nonexclusive, royalty free, copyright license to reproduce, create 	*/
+/*    derivative works, distribute, display and perform the Source Code and	*/
+/*    derivative works thereof, and to grant others the rights granted herein.	*/
+/*										*/
+/*  - The TCG grants to the user of the other parts of the specification 	*/
+/*    (other than the Source Code) the rights to reproduce, distribute, 	*/
+/*    display, and perform the specification solely for the purpose of 		*/
+/*    developing products based on such documents.				*/
+/*										*/
+/*  2. Source Code Distribution Conditions:					*/
+/*										*/
+/*  - Redistributions of Source Code must retain the above copyright licenses, 	*/
+/*    this list of conditions and the following disclaimers.			*/
+/*										*/
+/*  - Redistributions in binary form must reproduce the above copyright 	*/
+/*    licenses, this list of conditions	and the following disclaimers in the 	*/
+/*    documentation and/or other materials provided with the distribution.	*/
+/*										*/
+/*  3. Disclaimers:								*/
+/*										*/
+/*  - THE COPYRIGHT LICENSES SET FORTH ABOVE DO NOT REPRESENT ANY FORM OF	*/
+/*  LICENSE OR WAIVER, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, WITH	*/
+/*  RESPECT TO PATENT RIGHTS HELD BY TCG MEMBERS (OR OTHER THIRD PARTIES)	*/
+/*  THAT MAY BE NECESSARY TO IMPLEMENT THIS SPECIFICATION OR OTHERWISE.		*/
+/*  Contact TCG Administration (admin@trustedcomputinggroup.org) for 		*/
+/*  information on specification licensing rights available through TCG 	*/
+/*  membership agreements.							*/
+/*										*/
+/*  - THIS SPECIFICATION IS PROVIDED "AS IS" WITH NO EXPRESS OR IMPLIED 	*/
+/*    WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR 	*/
+/*    FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, COMPLETENESS, OR 		*/
+/*    NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS, OR ANY WARRANTY 		*/
+/*    OTHERWISE ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.		*/
+/*										*/
+/*  - Without limitation, TCG and its members and licensors disclaim all 	*/
+/*    liability, including liability for infringement of any proprietary 	*/
+/*    rights, relating to use of information in this specification and to the	*/
+/*    implementation of this specification, and TCG disclaims all liability for	*/
+/*    cost of procurement of substitute goods or services, lost profits, loss 	*/
+/*    of use, loss of data or any incidental, consequential, direct, indirect, 	*/
+/*    or special damages, whether under contract, tort, warranty or otherwise, 	*/
+/*    arising in any way out of use or reliance upon this specification or any 	*/
+/*    information herein.							*/
+/*										*/
+/*  (c) Copyright IBM Corp. and others, 2016 - 2021				*/
+/*										*/
+/********************************************************************************/
+
+/* 9.12 Memory.c */
+/* 9.12.1 Description */
+/* This file contains a set of miscellaneous memory manipulation routines. Many of the functions
+   have the same semantics as functions defined in string.h. Those functions are not used directly
+   in the TPM because they are not safe */
+/* This version uses string.h after adding guards.  This is because the math libraries invariably
+   use those functions so it is not practical to prevent those library functions from being pulled
+   into the build. */
+/* 9.12.2 Includes and Data Definitions */
+#include "Tpm.h"
+#include "Memory_fp.h"
+/* 9.12.3 Functions */
+/* 9.12.3.1 MemoryCopy() */
+/* This is an alias for memmove. This is used in place of memcpy because some of the moves may
+   overlap and rather than try to make sure that memmove is used when necessary, it is always
+   used. */
+
+void
+MemoryCopy(
+	   void        *dest,
+	   const void  *src,
+	   int          sSize
+	   )
+{
+    if (dest != src)
+	memmove(dest, src, sSize);
+}
+
+/* 9.12.3.2 MemoryEqual() */
+/* This function indicates if two buffers have the same values in the indicated number of bytes. */
+/* Return Values Meaning */
+/* TRUE all octets are the same */
+/* FALSE all octets are not the same */
+BOOL
+MemoryEqual(
+	    const void      *buffer1,       // IN: compare buffer1
+	    const void      *buffer2,       // IN: compare buffer2
+	    unsigned int     size           // IN: size of bytes being compared
+	    )
+{
+    BYTE         equal = 0;
+    const BYTE  *b1 = (BYTE *)buffer1;
+    const BYTE  *b2 = (BYTE *)buffer2;
+    //
+    // Compare all bytes so that there is no leakage of information
+    // due to timing differences.
+    for(; size > 0; size--)
+	equal |= (*b1++ ^ *b2++);
+    return (equal == 0);
+}
+/* 9.12.3.3 MemoryCopy2B() */
+/* This function copies a TPM2B. This can be used when the TPM2B types are the same or different. */
+/* This function returns the number of octets in the data buffer of the TPM2B. */
+LIB_EXPORT INT16
+MemoryCopy2B(
+	     TPM2B           *dest,          // OUT: receiving TPM2B
+	     const TPM2B     *source,        // IN: source TPM2B
+	     unsigned int     dSize          // IN: size of the receiving buffer
+	     )
+{
+    pAssert(dest != NULL);
+    if(source == NULL)
+	dest->size = 0;
+    else
+	{
+	    pAssert(source->size <= dSize);
+	    MemoryCopy(dest->buffer, source->buffer, source->size);
+	    dest->size = source->size;
+	}
+    return dest->size;
+}
+/* 9.12.3.4 MemoryConcat2B() */
+/* This function will concatenate the buffer contents of a TPM2B to the buffer contents of
+   another TPM2B and adjust the size accordingly (a := (a | b)). */
+void
+MemoryConcat2B(
+	       TPM2B           *aInOut,        // IN/OUT: destination 2B
+	       TPM2B           *bIn,           // IN: second 2B
+	       unsigned int     aMaxSize       // IN: The size of aInOut.buffer (max values for
+	       //     aInOut.size)
+	       )
+{
+    pAssert(bIn->size <= aMaxSize - aInOut->size);
+    MemoryCopy(&aInOut->buffer[aInOut->size], &bIn->buffer, bIn->size);
+    aInOut->size = aInOut->size + bIn->size;
+    return;
+}
+/* 9.12.3.5 MemoryEqual2B() */
+/* This function will compare two TPM2B structures. To be equal, they need to be the same size and
+   the buffer contexts need to be the same in all octets. */
+/* Return Values Meaning */
+/* TRUE size and buffer contents are the same */
+/* FALSE size or buffer contents are not the same */
+BOOL
+MemoryEqual2B(
+	      const TPM2B     *aIn,           // IN: compare value
+	      const TPM2B     *bIn            // IN: compare value
+	      )
+{
+    if(aIn->size != bIn->size)
+	return FALSE;
+    return MemoryEqual(aIn->buffer, bIn->buffer, aIn->size);
+}
+/* 9.12.3.6 MemorySet() */
+/* This function will set all the octets in the specified memory range to the specified octet
+   value. */
+/* NOTE: A previous version had an additional parameter (dSize) that was intended to make sure that
+   the destination would not be overrun. The problem is that, in use, all that was happening was
+   that the value of size was used for dSize so there was no benefit in the extra parameter. */
+
+void
+MemorySet(
+	  void            *dest,
+	  int              value,
+	  size_t           size
+	  )
+{
+    memset(dest, value, size);
+}
+
+/* 9.12.3.7 MemoryPad2B() */
+/* Function to pad a TPM2B with zeros and adjust the size. */
+
+void
+MemoryPad2B(
+	    TPM2B           *b,
+	    UINT16           newSize
+	    )
+{
+    MemorySet(&b->buffer[b->size], 0, newSize - b->size);
+    b->size = newSize;
+}
+
+/* 9.12.3.8 Uint16ToByteArray() */
+/* Function to write an integer to a byte array */
+
+void
+Uint16ToByteArray(
+		  UINT16              i,
+		  BYTE                *a
+		  )
+{
+    a[1] = (BYTE)(i); i >>= 8;
+    a[0] = (BYTE)(i);
+}
+
+/* 9.12.3.9 Uint32ToByteArray() */
+/* Function to write an integer to a byte array */
+
+void
+Uint32ToByteArray(
+		  UINT32              i,
+		  BYTE                *a
+		  )
+{
+    a[3] = (BYTE)(i); i >>= 8;
+    a[2] = (BYTE)(i); i >>= 8;
+    a[1] = (BYTE)(i); i >>= 8;
+    a[0] = (BYTE)(i);
+}
+
+/* 9.12.3.10 Uint64ToByteArray() */
+/* Function to write an integer to a byte array */
+
+void
+Uint64ToByteArray(
+		  UINT64               i,
+		  BYTE                *a
+		  )
+{
+    a[7] = (BYTE)(i); i >>= 8;
+    a[6] = (BYTE)(i); i >>= 8;
+    a[5] = (BYTE)(i); i >>= 8;
+    a[4] = (BYTE)(i); i >>= 8;
+    a[3] = (BYTE)(i); i >>= 8;
+    a[2] = (BYTE)(i); i >>= 8;
+    a[1] = (BYTE)(i); i >>= 8;
+    a[0] = (BYTE)(i);
+}
+
+/* 9.12.3.11	ByteArrayToUint8() */
+/* Function to write a UINT8 to a byte array. This is included for completeness and to allow certain
+   macro expansions */
+#if 0                 // libtpms added
+UINT8
+ByteArrayToUint8(
+		 BYTE                *a
+		 )
+{
+    return          *a;
+}
+#endif                // libtpms added
+
+/* 9.12.3.12 ByteArrayToUint16() */
+/* Function to write an integer to a byte array */
+
+UINT16
+ByteArrayToUint16(
+		  BYTE                *a
+		  )
+{
+    return ((UINT16)a[0] << 8) + a[1];
+}
+
+/* 9.12.3.13 ByteArrayToUint32() */
+/* Function to write an integer to a byte array */
+
+UINT32
+ByteArrayToUint32(
+		  BYTE                *a
+		  )
+{
+    return (UINT32)((((((UINT32)a[0] << 8) + a[1]) << 8) + (UINT32)a[2]) << 8) + a[3];
+}
+
+/* 9.12.3.14 ByteArrayToUint64() */
+/* Function to write an integer to a byte array */
+
+UINT64
+ByteArrayToUint64(
+		  BYTE                *a
+		  )
+{
+    return (((UINT64)BYTE_ARRAY_TO_UINT32(a)) << 32) + BYTE_ARRAY_TO_UINT32(&a[4]);
+}
+