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153 lines
6.1 KiB
C
153 lines
6.1 KiB
C
/* crypto/pqueue/pqueue_compat.h */
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/*
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* DTLS implementation written by Nagendra Modadugu
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* (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#ifndef HEADER_PQ_COMPAT_H
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#define HEADER_PQ_COMPAT_H
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#include <openssl/opensslconf.h>
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#include <openssl/bn.h>
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/*
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* The purpose of this header file is for supporting 64-bit integer
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* manipulation on 32-bit (and lower) machines. Currently the only
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* such environment is VMS, Utrix and those with smaller default integer
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* sizes than 32 bits. For all such environment, we fall back to using
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* BIGNUM. We may need to fine tune the conditions for systems that
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* are incorrectly configured.
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*
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* The only clients of this code are (1) pqueue for priority, and
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* (2) DTLS, for sequence number manipulation.
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*/
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#if (defined(THIRTY_TWO_BIT) && !defined(BN_LLONG)) || defined(SIXTEEN_BIT) || defined(EIGHT_BIT)
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#define PQ_64BIT_IS_INTEGER 0
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#define PQ_64BIT_IS_BIGNUM 1
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#define PQ_64BIT BIGNUM
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#define PQ_64BIT_CTX BN_CTX
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#define pq_64bit_init(x) BN_init(x)
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#define pq_64bit_free(x) BN_free(x)
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#define pq_64bit_ctx_new(ctx) BN_CTX_new()
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#define pq_64bit_ctx_free(x) BN_CTX_free(x)
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#define pq_64bit_assign(x, y) BN_copy(x, y)
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#define pq_64bit_assign_word(x, y) BN_set_word(x, y)
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#define pq_64bit_gt(x, y) BN_ucmp(x, y) >= 1 ? 1 : 0
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#define pq_64bit_eq(x, y) BN_ucmp(x, y) == 0 ? 1 : 0
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#define pq_64bit_add_word(x, w) BN_add_word(x, w)
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#define pq_64bit_sub(r, x, y) BN_sub(r, x, y)
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#define pq_64bit_sub_word(x, w) BN_sub_word(x, w)
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#define pq_64bit_mod(r, x, n, ctx) BN_mod(r, x, n, ctx)
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#define pq_64bit_bin2num(bn, bytes, len) BN_bin2bn(bytes, len, bn)
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#define pq_64bit_num2bin(bn, bytes) BN_bn2bin(bn, bytes)
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#define pq_64bit_get_word(x) BN_get_word(x)
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#define pq_64bit_is_bit_set(x, offset) BN_is_bit_set(x, offset)
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#define pq_64bit_lshift(r, x, shift) BN_lshift(r, x, shift)
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#define pq_64bit_set_bit(x, num) BN_set_bit(x, num)
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#define pq_64bit_get_length(x) BN_num_bits((x))
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#else
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#define PQ_64BIT_IS_INTEGER 1
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#define PQ_64BIT_IS_BIGNUM 0
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#if defined(SIXTY_FOUR_BIT)
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#define PQ_64BIT BN_ULONG
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#define PQ_64BIT_PRINT "%lld"
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#elif defined(SIXTY_FOUR_BIT_LONG)
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#define PQ_64BIT BN_ULONG
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#define PQ_64BIT_PRINT "%ld"
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#elif defined(THIRTY_TWO_BIT)
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#define PQ_64BIT BN_ULLONG
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#define PQ_64BIT_PRINT "%lld"
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#endif
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#define PQ_64BIT_CTX void
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#define pq_64bit_init(x)
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#define pq_64bit_free(x)
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#define pq_64bit_ctx_new(ctx) (ctx)
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#define pq_64bit_ctx_free(x)
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#define pq_64bit_assign(x, y) (*(x) = *(y))
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#define pq_64bit_assign_word(x, y) (*(x) = y)
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#define pq_64bit_gt(x, y) (*(x) > *(y))
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#define pq_64bit_eq(x, y) (*(x) == *(y))
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#define pq_64bit_add_word(x, w) (*(x) = (*(x) + (w)))
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#define pq_64bit_sub(r, x, y) (*(r) = (*(x) - *(y)))
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#define pq_64bit_sub_word(x, w) (*(x) = (*(x) - (w)))
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#define pq_64bit_mod(r, x, n, ctx)
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#define pq_64bit_bin2num(num, bytes, len) bytes_to_long_long(bytes, num)
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#define pq_64bit_num2bin(num, bytes) long_long_to_bytes(num, bytes)
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#define pq_64bit_get_word(x) *(x)
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#define pq_64bit_lshift(r, x, shift) (*(r) = (*(x) << (shift)))
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#define pq_64bit_set_bit(x, num) do { \
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PQ_64BIT mask = 1; \
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mask = mask << (num); \
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*(x) |= mask; \
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} while(0)
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#endif /* OPENSSL_SYS_VMS */
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#endif
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