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Diffstat (limited to 'srtp/crypto/include/integers.h')
| -rw-r--r-- | srtp/crypto/include/integers.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/srtp/crypto/include/integers.h b/srtp/crypto/include/integers.h new file mode 100644 index 0000000..7010efd --- /dev/null +++ b/srtp/crypto/include/integers.h @@ -0,0 +1,147 @@ +/* + * integers.h + * + * defines integer types (or refers to their definitions) + * + * David A. McGrew + * Cisco Systems, Inc. + */ + +/* + * + * Copyright (c) 2001-2006, Cisco Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * Neither the name of the Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + + +#ifndef INTEGERS_H +#define INTEGERS_H + +#include "config.h" /* configuration file, using autoconf */ + +#ifdef SRTP_KERNEL + +#include "kernel_compat.h" + +#else /* SRTP_KERNEL */ + +/* use standard integer definitions, if they're available */ +#ifdef HAVE_STDLIB_H +# include <stdlib.h> +#endif +#ifdef HAVE_STDINT_H +# include <stdint.h> +#endif +#ifdef HAVE_INTTYPES_H +# include <inttypes.h> +#endif +#ifdef HAVE_SYS_TYPES_H +# include <sys/types.h> +#endif +#ifdef HAVE_SYS_INT_TYPES_H +# include <sys/int_types.h> /* this exists on Sun OS */ +#endif +#ifdef HAVE_MACHINE_TYPES_H +# include <machine/types.h> +#endif + +/* Can we do 64 bit integers? */ +#ifndef HAVE_UINT64_T +# if SIZEOF_UNSIGNED_LONG == 8 +typedef unsigned long uint64_t; +# elif SIZEOF_UNSIGNED_LONG_LONG == 8 +typedef unsigned long long uint64_t; +# else +# define NO_64BIT_MATH 1 +# endif +#endif + +/* Reasonable defaults for 32 bit machines - you may need to + * edit these definitions for your own machine. */ +#ifndef HAVE_UINT8_T +typedef unsigned char uint8_t; +#endif +#ifndef HAVE_UINT16_T +typedef unsigned short int uint16_t; +#endif +#ifndef HAVE_UINT32_T +typedef unsigned int uint32_t; +#endif + + +#ifdef NO_64BIT_MATH +typedef double uint64_t; +/* assert that sizeof(double) == 8 */ +extern uint64_t make64(uint32_t high, uint32_t low); +extern uint32_t high32(uint64_t value); +extern uint32_t low32(uint64_t value); +#endif + +#endif /* SRTP_KERNEL */ + +/* These macros are to load and store 32-bit values from un-aligned + addresses. This is required for processors that do not allow unaligned + loads. */ +#ifdef ALIGNMENT_32BIT_REQUIRED +/* Note that if it's in a variable, you can memcpy it */ +#ifdef WORDS_BIGENDIAN +#define PUT_32(addr,value) \ + { \ + ((unsigned char *) (addr))[0] = (value >> 24); \ + ((unsigned char *) (addr))[1] = (value >> 16) & 0xff; \ + ((unsigned char *) (addr))[2] = (value >> 8) & 0xff; \ + ((unsigned char *) (addr))[3] = (value) & 0xff; \ + } +#define GET_32(addr) ((((unsigned char *) (addr))[0] << 24) | \ + (((unsigned char *) (addr))[1] << 16) | \ + (((unsigned char *) (addr))[2] << 8) | \ + (((unsigned char *) (addr))[3])) +#else +#define PUT_32(addr,value) \ + { \ + ((unsigned char *) (addr))[3] = (value >> 24); \ + ((unsigned char *) (addr))[2] = (value >> 16) & 0xff; \ + ((unsigned char *) (addr))[1] = (value >> 8) & 0xff; \ + ((unsigned char *) (addr))[0] = (value) & 0xff; \ + } +#define GET_32(addr) ((((unsigned char *) (addr))[3] << 24) | \ + (((unsigned char *) (addr))[2] << 16) | \ + (((unsigned char *) (addr))[1] << 8) | \ + (((unsigned char *) (addr))[0])) +#endif // WORDS_BIGENDIAN +#else +#define PUT_32(addr,value) *(((uint32_t *) (addr)) = (value) +#define GET_32(addr) (*(((uint32_t *) (addr))) +#endif + +#endif /* INTEGERS_H */ |