versadac  1
versadac - Scalable Recorder Firmware
pq_compat.h
1 /* crypto/pqueue/pqueue_compat.h */
2 /*
3  * DTLS implementation written by Nagendra Modadugu
4  * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
5  */
6 /* ====================================================================
7  * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. All advertising materials mentioning features or use of this
22  * software must display the following acknowledgment:
23  * "This product includes software developed by the OpenSSL Project
24  * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25  *
26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27  * endorse or promote products derived from this software without
28  * prior written permission. For written permission, please contact
29  * openssl-core@OpenSSL.org.
30  *
31  * 5. Products derived from this software may not be called "OpenSSL"
32  * nor may "OpenSSL" appear in their names without prior written
33  * permission of the OpenSSL Project.
34  *
35  * 6. Redistributions of any form whatsoever must retain the following
36  * acknowledgment:
37  * "This product includes software developed by the OpenSSL Project
38  * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51  * OF THE POSSIBILITY OF SUCH DAMAGE.
52  * ====================================================================
53  *
54  * This product includes cryptographic software written by Eric Young
55  * (eay@cryptsoft.com). This product includes software written by Tim
56  * Hudson (tjh@cryptsoft.com).
57  *
58  */
59 
60 #include <openssl/opensslconf.h>
61 #include <openssl/bn.h>
62 
63 /*
64  * The purpose of this header file is for supporting 64-bit integer
65  * manipulation on 32-bit (and lower) machines. Currently the only
66  * such environment is VMS, Utrix and those with smaller default integer
67  * sizes than 32 bits. For all such environment, we fall back to using
68  * BIGNUM. We may need to fine tune the conditions for systems that
69  * are incorrectly configured.
70  *
71  * The only clients of this code are (1) pqueue for priority, and
72  * (2) DTLS, for sequence number manipulation.
73  */
74 
75 #if (defined(THIRTY_TWO_BIT) && !defined(BN_LLONG)) || defined(SIXTEEN_BIT) || defined(EIGHT_BIT)
76 
77 #define PQ_64BIT_IS_INTEGER 0
78 #define PQ_64BIT_IS_BIGNUM 1
79 
80 #define PQ_64BIT BIGNUM
81 #define PQ_64BIT_CTX BN_CTX
82 
83 #define pq_64bit_init(x) BN_init(x)
84 #define pq_64bit_free(x) BN_free(x)
85 
86 #define pq_64bit_ctx_new(ctx) BN_CTX_new()
87 #define pq_64bit_ctx_free(x) BN_CTX_free(x)
88 
89 #define pq_64bit_assign(x, y) BN_copy(x, y)
90 #define pq_64bit_assign_word(x, y) BN_set_word(x, y)
91 #define pq_64bit_gt(x, y) BN_ucmp(x, y) >= 1 ? 1 : 0
92 #define pq_64bit_eq(x, y) BN_ucmp(x, y) == 0 ? 1 : 0
93 #define pq_64bit_add_word(x, w) BN_add_word(x, w)
94 #define pq_64bit_sub(r, x, y) BN_sub(r, x, y)
95 #define pq_64bit_sub_word(x, w) BN_sub_word(x, w)
96 #define pq_64bit_mod(r, x, n, ctx) BN_mod(r, x, n, ctx)
97 
98 #define pq_64bit_bin2num(bn, bytes, len) BN_bin2bn(bytes, len, bn)
99 #define pq_64bit_num2bin(bn, bytes) BN_bn2bin(bn, bytes)
100 #define pq_64bit_get_word(x) BN_get_word(x)
101 #define pq_64bit_is_bit_set(x, offset) BN_is_bit_set(x, offset)
102 #define pq_64bit_lshift(r, x, shift) BN_lshift(r, x, shift)
103 #define pq_64bit_set_bit(x, num) BN_set_bit(x, num)
104 #define pq_64bit_get_length(x) BN_num_bits((x))
105 
106 #else
107 
108 #define PQ_64BIT_IS_INTEGER 1
109 #define PQ_64BIT_IS_BIGNUM 0
110 
111 #if defined(SIXTY_FOUR_BIT)
112 #define PQ_64BIT BN_ULONG
113 #define PQ_64BIT_PRINT "%lld"
114 #elif defined(SIXTY_FOUR_BIT_LONG)
115 #define PQ_64BIT BN_ULONG
116 #define PQ_64BIT_PRINT "%ld"
117 #elif defined(THIRTY_TWO_BIT)
118 #define PQ_64BIT BN_ULLONG
119 #define PQ_64BIT_PRINT "%lld"
120 #endif
121 
122 #define PQ_64BIT_CTX void
123 
124 #define pq_64bit_init(x)
125 #define pq_64bit_free(x)
126 #define pq_64bit_ctx_new(ctx) (ctx)
127 #define pq_64bit_ctx_free(x)
128 
129 #define pq_64bit_assign(x, y) (*(x) = *(y))
130 #define pq_64bit_assign_word(x, y) (*(x) = y)
131 #define pq_64bit_gt(x, y) (*(x) > *(y))
132 #define pq_64bit_eq(x, y) (*(x) == *(y))
133 #define pq_64bit_add_word(x, w) (*(x) = (*(x) + (w)))
134 #define pq_64bit_sub(r, x, y) (*(r) = (*(x) - *(y)))
135 #define pq_64bit_sub_word(x, w) (*(x) = (*(x) - (w)))
136 #define pq_64bit_mod(r, x, n, ctx)
137 
138 #define pq_64bit_bin2num(num, bytes, len) bytes_to_long_long(bytes, num)
139 #define pq_64bit_num2bin(num, bytes) long_long_to_bytes(num, bytes)
140 #define pq_64bit_get_word(x) *(x)
141 #define pq_64bit_lshift(r, x, shift) (*(r) = (*(x) << (shift)))
142 #define pq_64bit_set_bit(x, num) do { \
143  PQ_64BIT mask = 1; \
144  mask = mask << (num); \
145  *(x) |= mask; \
146  } while(0)
147 #endif /* OPENSSL_SYS_VMS */