[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include "internal/numbers.h"
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| 13 | #include <limits.h>
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| 14 | #include <openssl/asn1.h>
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| 15 | #include <openssl/bn.h>
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| 16 | #include "asn1_locl.h"
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| 17 |
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| 18 | ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
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| 19 | {
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| 20 | return ASN1_STRING_dup(x);
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| 21 | }
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| 22 |
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| 23 | int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
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| 24 | {
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| 25 | int neg, ret;
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| 26 | /* Compare signs */
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| 27 | neg = x->type & V_ASN1_NEG;
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| 28 | if (neg != (y->type & V_ASN1_NEG)) {
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| 29 | if (neg)
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| 30 | return -1;
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| 31 | else
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| 32 | return 1;
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| 33 | }
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| 34 |
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| 35 | ret = ASN1_STRING_cmp(x, y);
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| 36 |
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| 37 | if (neg)
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| 38 | return -ret;
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| 39 | else
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| 40 | return ret;
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| 41 | }
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| 42 |
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| 43 | /*-
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| 44 | * This converts a big endian buffer and sign into its content encoding.
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| 45 | * This is used for INTEGER and ENUMERATED types.
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| 46 | * The internal representation is an ASN1_STRING whose data is a big endian
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| 47 | * representation of the value, ignoring the sign. The sign is determined by
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| 48 | * the type: if type & V_ASN1_NEG is true it is negative, otherwise positive.
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| 49 | *
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| 50 | * Positive integers are no problem: they are almost the same as the DER
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| 51 | * encoding, except if the first byte is >= 0x80 we need to add a zero pad.
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| 52 | *
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| 53 | * Negative integers are a bit trickier...
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| 54 | * The DER representation of negative integers is in 2s complement form.
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| 55 | * The internal form is converted by complementing each octet and finally
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| 56 | * adding one to the result. This can be done less messily with a little trick.
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| 57 | * If the internal form has trailing zeroes then they will become FF by the
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| 58 | * complement and 0 by the add one (due to carry) so just copy as many trailing
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| 59 | * zeros to the destination as there are in the source. The carry will add one
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| 60 | * to the last none zero octet: so complement this octet and add one and finally
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| 61 | * complement any left over until you get to the start of the string.
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| 62 | *
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| 63 | * Padding is a little trickier too. If the first bytes is > 0x80 then we pad
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| 64 | * with 0xff. However if the first byte is 0x80 and one of the following bytes
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| 65 | * is non-zero we pad with 0xff. The reason for this distinction is that 0x80
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| 66 | * followed by optional zeros isn't padded.
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| 67 | */
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| 68 |
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| 69 | static size_t i2c_ibuf(const unsigned char *b, size_t blen, int neg,
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| 70 | unsigned char **pp)
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| 71 | {
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| 72 | int pad = 0;
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| 73 | size_t ret, i;
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| 74 | unsigned char *p, pb = 0;
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| 75 | const unsigned char *n;
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| 76 |
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| 77 | if (b == NULL || blen == 0)
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| 78 | ret = 1;
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| 79 | else {
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| 80 | ret = blen;
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| 81 | i = b[0];
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| 82 | if (ret == 1 && i == 0)
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| 83 | neg = 0;
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| 84 | if (!neg && (i > 127)) {
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| 85 | pad = 1;
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| 86 | pb = 0;
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| 87 | } else if (neg) {
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| 88 | if (i > 128) {
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| 89 | pad = 1;
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| 90 | pb = 0xFF;
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| 91 | } else if (i == 128) {
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| 92 | /*
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| 93 | * Special case: if any other bytes non zero we pad:
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| 94 | * otherwise we don't.
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| 95 | */
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| 96 | for (i = 1; i < blen; i++)
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| 97 | if (b[i]) {
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| 98 | pad = 1;
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| 99 | pb = 0xFF;
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| 100 | break;
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| 101 | }
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| 102 | }
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| 103 | }
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| 104 | ret += pad;
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| 105 | }
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| 106 | if (pp == NULL)
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| 107 | return ret;
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| 108 | p = *pp;
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| 109 |
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| 110 | if (pad)
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| 111 | *(p++) = pb;
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| 112 | if (b == NULL || blen == 0)
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| 113 | *p = 0;
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| 114 | else if (!neg)
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| 115 | memcpy(p, b, blen);
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| 116 | else {
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| 117 | /* Begin at the end of the encoding */
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| 118 | n = b + blen;
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| 119 | p += blen;
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| 120 | i = blen;
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| 121 | /* Copy zeros to destination as long as source is zero */
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| 122 | while (!n[-1] && i > 1) {
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| 123 | *(--p) = 0;
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| 124 | n--;
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| 125 | i--;
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| 126 | }
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| 127 | /* Complement and increment next octet */
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| 128 | *(--p) = ((*(--n)) ^ 0xff) + 1;
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| 129 | i--;
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| 130 | /* Complement any octets left */
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| 131 | for (; i > 0; i--)
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| 132 | *(--p) = *(--n) ^ 0xff;
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| 133 | }
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| 134 |
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| 135 | *pp += ret;
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| 136 | return ret;
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| 137 | }
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| 138 |
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| 139 | /*
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| 140 | * convert content octets into a big endian buffer. Returns the length
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| 141 | * of buffer or 0 on error: for malformed INTEGER. If output buffer is
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| 142 | * NULL just return length.
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| 143 | */
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| 144 |
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| 145 | static size_t c2i_ibuf(unsigned char *b, int *pneg,
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| 146 | const unsigned char *p, size_t plen)
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| 147 | {
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| 148 | size_t i;
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| 149 | int neg, pad;
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| 150 | /* Zero content length is illegal */
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| 151 | if (plen == 0) {
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| 152 | ASN1err(ASN1_F_C2I_IBUF, ASN1_R_ILLEGAL_ZERO_CONTENT);
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| 153 | return 0;
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| 154 | }
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| 155 | neg = p[0] & 0x80;
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| 156 | if (pneg)
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| 157 | *pneg = neg;
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| 158 | /* Handle common case where length is 1 octet separately */
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| 159 | if (plen == 1) {
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| 160 | if (b) {
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| 161 | if (neg)
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| 162 | b[0] = (p[0] ^ 0xFF) + 1;
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| 163 | else
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| 164 | b[0] = p[0];
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| 165 | }
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| 166 | return 1;
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| 167 | }
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| 168 | if (p[0] == 0 || p[0] == 0xFF)
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| 169 | pad = 1;
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| 170 | else
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| 171 | pad = 0;
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| 172 | /* reject illegal padding: first two octets MSB can't match */
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| 173 | if (pad && (neg == (p[1] & 0x80))) {
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| 174 | ASN1err(ASN1_F_C2I_IBUF, ASN1_R_ILLEGAL_PADDING);
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| 175 | return 0;
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| 176 | }
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| 177 | /* If positive just copy across */
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| 178 | if (neg == 0) {
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| 179 | if (b)
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| 180 | memcpy(b, p + pad, plen - pad);
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| 181 | return plen - pad;
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| 182 | }
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| 183 |
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| 184 | if (neg && pad) {
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| 185 | /* check is any following octets are non zero */
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| 186 | for (i = 1; i < plen; i++) {
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| 187 | if (p[i] != 0)
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| 188 | break;
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| 189 | }
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| 190 | /* if all bytes are zero handle as special case */
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| 191 | if (i == plen) {
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| 192 | if (b) {
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| 193 | b[0] = 1;
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| 194 | memset(b + 1, 0, plen - 1);
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| 195 | }
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| 196 | return plen;
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| 197 | }
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| 198 | }
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| 199 |
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| 200 | plen -= pad;
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| 201 | /* Must be negative: calculate twos complement */
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| 202 | if (b) {
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| 203 | const unsigned char *from = p + plen - 1 + pad;
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| 204 | unsigned char *to = b + plen;
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| 205 | i = plen;
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| 206 | while (*from == 0 && i) {
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| 207 | *--to = 0;
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| 208 | i--;
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| 209 | from--;
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| 210 | }
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| 211 | *--to = (*from-- ^ 0xff) + 1;
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| 212 | OPENSSL_assert(i != 0);
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| 213 | i--;
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| 214 | for (; i > 0; i--)
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| 215 | *--to = *from-- ^ 0xff;
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| 216 | }
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| 217 | return plen;
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| 218 | }
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| 219 |
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| 220 | int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
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| 221 | {
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| 222 | return i2c_ibuf(a->data, a->length, a->type & V_ASN1_NEG, pp);
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| 223 | }
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| 224 |
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| 225 | /* Convert big endian buffer into uint64_t, return 0 on error */
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| 226 | static int asn1_get_uint64(uint64_t *pr, const unsigned char *b, size_t blen)
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| 227 | {
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| 228 | size_t i;
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| 229 | if (blen > sizeof(*pr)) {
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| 230 | ASN1err(ASN1_F_ASN1_GET_UINT64, ASN1_R_TOO_LARGE);
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| 231 | return 0;
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| 232 | }
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| 233 | *pr = 0;
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| 234 | if (b == NULL)
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| 235 | return 0;
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| 236 | for (i = 0; i < blen; i++) {
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| 237 | *pr <<= 8;
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| 238 | *pr |= b[i];
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| 239 | }
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| 240 | return 1;
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| 241 | }
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| 242 |
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| 243 | static size_t asn1_put_uint64(unsigned char *b, uint64_t r)
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| 244 | {
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| 245 | if (r >= 0x100) {
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| 246 | unsigned char *p;
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| 247 | uint64_t rtmp = r;
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| 248 | size_t i = 0;
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| 249 |
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| 250 | /* Work out how many bytes we need */
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| 251 | while (rtmp) {
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| 252 | rtmp >>= 8;
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| 253 | i++;
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| 254 | }
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| 255 |
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| 256 | /* Copy from end to beginning */
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| 257 | p = b + i - 1;
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| 258 |
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| 259 | do {
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| 260 | *p-- = r & 0xFF;
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| 261 | r >>= 8;
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| 262 | } while (p >= b);
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| 263 |
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| 264 | return i;
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| 265 | }
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| 266 |
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| 267 | b[0] = (unsigned char)r;
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| 268 | return 1;
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| 269 |
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| 270 | }
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| 271 |
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| 272 | /*
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| 273 | * Absolute value of INT64_MIN: we can't just use -INT64_MIN as it produces
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| 274 | * overflow warnings.
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| 275 | */
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| 276 |
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| 277 | #define ABS_INT64_MIN \
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| 278 | ((uint64_t)INT64_MAX + (uint64_t)(-(INT64_MIN + INT64_MAX)))
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| 279 |
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| 280 | /* signed version of asn1_get_uint64 */
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| 281 | static int asn1_get_int64(int64_t *pr, const unsigned char *b, size_t blen,
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| 282 | int neg)
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| 283 | {
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| 284 | uint64_t r;
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| 285 | if (asn1_get_uint64(&r, b, blen) == 0)
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| 286 | return 0;
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| 287 | if (neg) {
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| 288 | if (r > ABS_INT64_MIN) {
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| 289 | ASN1err(ASN1_F_ASN1_GET_INT64, ASN1_R_TOO_SMALL);
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| 290 | return 0;
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| 291 | }
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| 292 | *pr = 0 - (uint64_t)r;
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| 293 | } else {
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| 294 | if (r > INT64_MAX) {
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| 295 | ASN1err(ASN1_F_ASN1_GET_INT64, ASN1_R_TOO_LARGE);
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| 296 | return 0;
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| 297 | }
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| 298 | *pr = (int64_t)r;
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| 299 | }
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| 300 | return 1;
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| 301 | }
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| 302 |
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| 303 | /* Convert ASN1 INTEGER content octets to ASN1_INTEGER structure */
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| 304 | ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
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| 305 | long len)
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| 306 | {
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| 307 | ASN1_INTEGER *ret = NULL;
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| 308 | size_t r;
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| 309 | int neg;
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| 310 |
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| 311 | r = c2i_ibuf(NULL, NULL, *pp, len);
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| 312 |
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| 313 | if (r == 0)
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| 314 | return NULL;
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| 315 |
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| 316 | if ((a == NULL) || ((*a) == NULL)) {
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| 317 | ret = ASN1_INTEGER_new();
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| 318 | if (ret == NULL)
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| 319 | return NULL;
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| 320 | ret->type = V_ASN1_INTEGER;
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| 321 | } else
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| 322 | ret = *a;
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| 323 |
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| 324 | if (ASN1_STRING_set(ret, NULL, r) == 0)
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| 325 | goto err;
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| 326 |
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| 327 | c2i_ibuf(ret->data, &neg, *pp, len);
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| 328 |
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| 329 | if (neg)
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| 330 | ret->type |= V_ASN1_NEG;
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| 331 |
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| 332 | *pp += len;
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| 333 | if (a != NULL)
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| 334 | (*a) = ret;
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| 335 | return ret;
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| 336 | err:
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| 337 | ASN1err(ASN1_F_C2I_ASN1_INTEGER, ERR_R_MALLOC_FAILURE);
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| 338 | if ((a == NULL) || (*a != ret))
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| 339 | ASN1_INTEGER_free(ret);
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| 340 | return NULL;
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| 341 | }
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| 342 |
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| 343 | static int asn1_string_get_int64(int64_t *pr, const ASN1_STRING *a, int itype)
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| 344 | {
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| 345 | if (a == NULL) {
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| 346 | ASN1err(ASN1_F_ASN1_STRING_GET_INT64, ERR_R_PASSED_NULL_PARAMETER);
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| 347 | return 0;
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| 348 | }
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| 349 | if ((a->type & ~V_ASN1_NEG) != itype) {
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| 350 | ASN1err(ASN1_F_ASN1_STRING_GET_INT64, ASN1_R_WRONG_INTEGER_TYPE);
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| 351 | return 0;
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| 352 | }
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| 353 | return asn1_get_int64(pr, a->data, a->length, a->type & V_ASN1_NEG);
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| 354 | }
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| 355 |
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| 356 | static int asn1_string_set_int64(ASN1_STRING *a, int64_t r, int itype)
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| 357 | {
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| 358 | unsigned char tbuf[sizeof(r)];
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| 359 | size_t l;
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| 360 | a->type = itype;
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| 361 | if (r < 0) {
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| 362 | l = asn1_put_uint64(tbuf, -r);
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| 363 | a->type |= V_ASN1_NEG;
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| 364 | } else {
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| 365 | l = asn1_put_uint64(tbuf, r);
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| 366 | a->type &= ~V_ASN1_NEG;
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| 367 | }
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| 368 | if (l == 0)
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| 369 | return 0;
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| 370 | return ASN1_STRING_set(a, tbuf, l);
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| 371 | }
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| 372 |
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| 373 | static int asn1_string_get_uint64(uint64_t *pr, const ASN1_STRING *a,
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| 374 | int itype)
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| 375 | {
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| 376 | if (a == NULL) {
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| 377 | ASN1err(ASN1_F_ASN1_STRING_GET_UINT64, ERR_R_PASSED_NULL_PARAMETER);
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| 378 | return 0;
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| 379 | }
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| 380 | if ((a->type & ~V_ASN1_NEG) != itype) {
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| 381 | ASN1err(ASN1_F_ASN1_STRING_GET_UINT64, ASN1_R_WRONG_INTEGER_TYPE);
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| 382 | return 0;
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| 383 | }
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| 384 | if (a->type & V_ASN1_NEG) {
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| 385 | ASN1err(ASN1_F_ASN1_STRING_GET_UINT64, ASN1_R_ILLEGAL_NEGATIVE_VALUE);
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| 386 | return 0;
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| 387 | }
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| 388 | return asn1_get_uint64(pr, a->data, a->length);
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| 389 | }
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| 390 |
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| 391 | static int asn1_string_set_uint64(ASN1_STRING *a, uint64_t r, int itype)
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| 392 | {
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| 393 | unsigned char tbuf[sizeof(r)];
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| 394 | size_t l;
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| 395 | a->type = itype;
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| 396 | l = asn1_put_uint64(tbuf, r);
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| 397 | if (l == 0)
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| 398 | return 0;
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| 399 | return ASN1_STRING_set(a, tbuf, l);
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| 400 | }
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| 401 |
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| 402 | /*
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| 403 | * This is a version of d2i_ASN1_INTEGER that ignores the sign bit of ASN1
|
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| 404 | * integers: some broken software can encode a positive INTEGER with its MSB
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| 405 | * set as negative (it doesn't add a padding zero).
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| 406 | */
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| 407 |
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| 408 | ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
|
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| 409 | long length)
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| 410 | {
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| 411 | ASN1_INTEGER *ret = NULL;
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| 412 | const unsigned char *p;
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| 413 | unsigned char *s;
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| 414 | long len;
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| 415 | int inf, tag, xclass;
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| 416 | int i;
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| 417 |
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| 418 | if ((a == NULL) || ((*a) == NULL)) {
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| 419 | if ((ret = ASN1_INTEGER_new()) == NULL)
|
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| 420 | return (NULL);
|
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| 421 | ret->type = V_ASN1_INTEGER;
|
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| 422 | } else
|
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| 423 | ret = (*a);
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| 424 |
|
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| 425 | p = *pp;
|
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| 426 | inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
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| 427 | if (inf & 0x80) {
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| 428 | i = ASN1_R_BAD_OBJECT_HEADER;
|
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| 429 | goto err;
|
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| 430 | }
|
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| 431 |
|
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| 432 | if (tag != V_ASN1_INTEGER) {
|
---|
| 433 | i = ASN1_R_EXPECTING_AN_INTEGER;
|
---|
| 434 | goto err;
|
---|
| 435 | }
|
---|
| 436 |
|
---|
| 437 | /*
|
---|
| 438 | * We must OPENSSL_malloc stuff, even for 0 bytes otherwise it signifies
|
---|
| 439 | * a missing NULL parameter.
|
---|
| 440 | */
|
---|
| 441 | s = OPENSSL_malloc((int)len + 1);
|
---|
| 442 | if (s == NULL) {
|
---|
| 443 | i = ERR_R_MALLOC_FAILURE;
|
---|
| 444 | goto err;
|
---|
| 445 | }
|
---|
| 446 | ret->type = V_ASN1_INTEGER;
|
---|
| 447 | if (len) {
|
---|
| 448 | if ((*p == 0) && (len != 1)) {
|
---|
| 449 | p++;
|
---|
| 450 | len--;
|
---|
| 451 | }
|
---|
| 452 | memcpy(s, p, (int)len);
|
---|
| 453 | p += len;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 | OPENSSL_free(ret->data);
|
---|
| 457 | ret->data = s;
|
---|
| 458 | ret->length = (int)len;
|
---|
| 459 | if (a != NULL)
|
---|
| 460 | (*a) = ret;
|
---|
| 461 | *pp = p;
|
---|
| 462 | return (ret);
|
---|
| 463 | err:
|
---|
| 464 | ASN1err(ASN1_F_D2I_ASN1_UINTEGER, i);
|
---|
| 465 | if ((a == NULL) || (*a != ret))
|
---|
| 466 | ASN1_INTEGER_free(ret);
|
---|
| 467 | return (NULL);
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | static ASN1_STRING *bn_to_asn1_string(const BIGNUM *bn, ASN1_STRING *ai,
|
---|
| 471 | int atype)
|
---|
| 472 | {
|
---|
| 473 | ASN1_INTEGER *ret;
|
---|
| 474 | int len;
|
---|
| 475 |
|
---|
| 476 | if (ai == NULL) {
|
---|
| 477 | ret = ASN1_STRING_type_new(atype);
|
---|
| 478 | } else {
|
---|
| 479 | ret = ai;
|
---|
| 480 | ret->type = atype;
|
---|
| 481 | }
|
---|
| 482 |
|
---|
| 483 | if (ret == NULL) {
|
---|
| 484 | ASN1err(ASN1_F_BN_TO_ASN1_STRING, ERR_R_NESTED_ASN1_ERROR);
|
---|
| 485 | goto err;
|
---|
| 486 | }
|
---|
| 487 |
|
---|
| 488 | if (BN_is_negative(bn) && !BN_is_zero(bn))
|
---|
| 489 | ret->type |= V_ASN1_NEG_INTEGER;
|
---|
| 490 |
|
---|
| 491 | len = BN_num_bytes(bn);
|
---|
| 492 |
|
---|
| 493 | if (len == 0)
|
---|
| 494 | len = 1;
|
---|
| 495 |
|
---|
| 496 | if (ASN1_STRING_set(ret, NULL, len) == 0) {
|
---|
| 497 | ASN1err(ASN1_F_BN_TO_ASN1_STRING, ERR_R_MALLOC_FAILURE);
|
---|
| 498 | goto err;
|
---|
| 499 | }
|
---|
| 500 |
|
---|
| 501 | /* Correct zero case */
|
---|
| 502 | if (BN_is_zero(bn))
|
---|
| 503 | ret->data[0] = 0;
|
---|
| 504 | else
|
---|
| 505 | len = BN_bn2bin(bn, ret->data);
|
---|
| 506 | ret->length = len;
|
---|
| 507 | return ret;
|
---|
| 508 | err:
|
---|
| 509 | if (ret != ai)
|
---|
| 510 | ASN1_INTEGER_free(ret);
|
---|
| 511 | return (NULL);
|
---|
| 512 | }
|
---|
| 513 |
|
---|
| 514 | static BIGNUM *asn1_string_to_bn(const ASN1_INTEGER *ai, BIGNUM *bn,
|
---|
| 515 | int itype)
|
---|
| 516 | {
|
---|
| 517 | BIGNUM *ret;
|
---|
| 518 |
|
---|
| 519 | if ((ai->type & ~V_ASN1_NEG) != itype) {
|
---|
| 520 | ASN1err(ASN1_F_ASN1_STRING_TO_BN, ASN1_R_WRONG_INTEGER_TYPE);
|
---|
| 521 | return NULL;
|
---|
| 522 | }
|
---|
| 523 |
|
---|
| 524 | ret = BN_bin2bn(ai->data, ai->length, bn);
|
---|
| 525 | if (ret == 0) {
|
---|
| 526 | ASN1err(ASN1_F_ASN1_STRING_TO_BN, ASN1_R_BN_LIB);
|
---|
| 527 | return NULL;
|
---|
| 528 | }
|
---|
| 529 | if (ai->type & V_ASN1_NEG)
|
---|
| 530 | BN_set_negative(ret, 1);
|
---|
| 531 | return ret;
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 | int ASN1_INTEGER_get_int64(int64_t *pr, const ASN1_INTEGER *a)
|
---|
| 535 | {
|
---|
| 536 | return asn1_string_get_int64(pr, a, V_ASN1_INTEGER);
|
---|
| 537 | }
|
---|
| 538 |
|
---|
| 539 | int ASN1_INTEGER_set_int64(ASN1_INTEGER *a, int64_t r)
|
---|
| 540 | {
|
---|
| 541 | return asn1_string_set_int64(a, r, V_ASN1_INTEGER);
|
---|
| 542 | }
|
---|
| 543 |
|
---|
| 544 | int ASN1_INTEGER_get_uint64(uint64_t *pr, const ASN1_INTEGER *a)
|
---|
| 545 | {
|
---|
| 546 | return asn1_string_get_uint64(pr, a, V_ASN1_INTEGER);
|
---|
| 547 | }
|
---|
| 548 |
|
---|
| 549 | int ASN1_INTEGER_set_uint64(ASN1_INTEGER *a, uint64_t r)
|
---|
| 550 | {
|
---|
| 551 | return asn1_string_set_uint64(a, r, V_ASN1_INTEGER);
|
---|
| 552 | }
|
---|
| 553 |
|
---|
| 554 | int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
|
---|
| 555 | {
|
---|
| 556 | return ASN1_INTEGER_set_int64(a, v);
|
---|
| 557 | }
|
---|
| 558 |
|
---|
| 559 | long ASN1_INTEGER_get(const ASN1_INTEGER *a)
|
---|
| 560 | {
|
---|
| 561 | int i;
|
---|
| 562 | int64_t r;
|
---|
| 563 | if (a == NULL)
|
---|
| 564 | return 0;
|
---|
| 565 | i = ASN1_INTEGER_get_int64(&r, a);
|
---|
| 566 | if (i == 0)
|
---|
| 567 | return -1;
|
---|
| 568 | if (r > LONG_MAX || r < LONG_MIN)
|
---|
| 569 | return -1;
|
---|
| 570 | return (long)r;
|
---|
| 571 | }
|
---|
| 572 |
|
---|
| 573 | ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
|
---|
| 574 | {
|
---|
| 575 | return bn_to_asn1_string(bn, ai, V_ASN1_INTEGER);
|
---|
| 576 | }
|
---|
| 577 |
|
---|
| 578 | BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
|
---|
| 579 | {
|
---|
| 580 | return asn1_string_to_bn(ai, bn, V_ASN1_INTEGER);
|
---|
| 581 | }
|
---|
| 582 |
|
---|
| 583 | int ASN1_ENUMERATED_get_int64(int64_t *pr, const ASN1_ENUMERATED *a)
|
---|
| 584 | {
|
---|
| 585 | return asn1_string_get_int64(pr, a, V_ASN1_ENUMERATED);
|
---|
| 586 | }
|
---|
| 587 |
|
---|
| 588 | int ASN1_ENUMERATED_set_int64(ASN1_ENUMERATED *a, int64_t r)
|
---|
| 589 | {
|
---|
| 590 | return asn1_string_set_int64(a, r, V_ASN1_ENUMERATED);
|
---|
| 591 | }
|
---|
| 592 |
|
---|
| 593 | int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v)
|
---|
| 594 | {
|
---|
| 595 | return ASN1_ENUMERATED_set_int64(a, v);
|
---|
| 596 | }
|
---|
| 597 |
|
---|
| 598 | long ASN1_ENUMERATED_get(const ASN1_ENUMERATED *a)
|
---|
| 599 | {
|
---|
| 600 | int i;
|
---|
| 601 | int64_t r;
|
---|
| 602 | if (a == NULL)
|
---|
| 603 | return 0;
|
---|
| 604 | if ((a->type & ~V_ASN1_NEG) != V_ASN1_ENUMERATED)
|
---|
| 605 | return -1;
|
---|
| 606 | if (a->length > (int)sizeof(long))
|
---|
| 607 | return 0xffffffffL;
|
---|
| 608 | i = ASN1_ENUMERATED_get_int64(&r, a);
|
---|
| 609 | if (i == 0)
|
---|
| 610 | return -1;
|
---|
| 611 | if (r > LONG_MAX || r < LONG_MIN)
|
---|
| 612 | return -1;
|
---|
| 613 | return (long)r;
|
---|
| 614 | }
|
---|
| 615 |
|
---|
| 616 | ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(const BIGNUM *bn, ASN1_ENUMERATED *ai)
|
---|
| 617 | {
|
---|
| 618 | return bn_to_asn1_string(bn, ai, V_ASN1_ENUMERATED);
|
---|
| 619 | }
|
---|
| 620 |
|
---|
| 621 | BIGNUM *ASN1_ENUMERATED_to_BN(const ASN1_ENUMERATED *ai, BIGNUM *bn)
|
---|
| 622 | {
|
---|
| 623 | return asn1_string_to_bn(ai, bn, V_ASN1_ENUMERATED);
|
---|
| 624 | }
|
---|