summaryrefslogtreecommitdiff
path: root/drivers/builtin_openssl2/crypto/asn1/a_int.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/builtin_openssl2/crypto/asn1/a_int.c')
-rw-r--r--drivers/builtin_openssl2/crypto/asn1/a_int.c464
1 files changed, 0 insertions, 464 deletions
diff --git a/drivers/builtin_openssl2/crypto/asn1/a_int.c b/drivers/builtin_openssl2/crypto/asn1/a_int.c
deleted file mode 100644
index 7e26704a54..0000000000
--- a/drivers/builtin_openssl2/crypto/asn1/a_int.c
+++ /dev/null
@@ -1,464 +0,0 @@
-/* crypto/asn1/a_int.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/asn1.h>
-#include <openssl/bn.h>
-
-ASN1_INTEGER *ASN1_INTEGER_dup(const ASN1_INTEGER *x)
-{
- return M_ASN1_INTEGER_dup(x);
-}
-
-int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y)
-{
- int neg, ret;
- /* Compare signs */
- neg = x->type & V_ASN1_NEG;
- if (neg != (y->type & V_ASN1_NEG)) {
- if (neg)
- return -1;
- else
- return 1;
- }
-
- ret = ASN1_STRING_cmp(x, y);
-
- if (neg)
- return -ret;
- else
- return ret;
-}
-
-/*-
- * This converts an ASN1 INTEGER into its content encoding.
- * The internal representation is an ASN1_STRING whose data is a big endian
- * representation of the value, ignoring the sign. The sign is determined by
- * the type: V_ASN1_INTEGER for positive and V_ASN1_NEG_INTEGER for negative.
- *
- * Positive integers are no problem: they are almost the same as the DER
- * encoding, except if the first byte is >= 0x80 we need to add a zero pad.
- *
- * Negative integers are a bit trickier...
- * The DER representation of negative integers is in 2s complement form.
- * The internal form is converted by complementing each octet and finally
- * adding one to the result. This can be done less messily with a little trick.
- * If the internal form has trailing zeroes then they will become FF by the
- * complement and 0 by the add one (due to carry) so just copy as many trailing
- * zeros to the destination as there are in the source. The carry will add one
- * to the last none zero octet: so complement this octet and add one and finally
- * complement any left over until you get to the start of the string.
- *
- * Padding is a little trickier too. If the first bytes is > 0x80 then we pad
- * with 0xff. However if the first byte is 0x80 and one of the following bytes
- * is non-zero we pad with 0xff. The reason for this distinction is that 0x80
- * followed by optional zeros isn't padded.
- */
-
-int i2c_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
-{
- int pad = 0, ret, i, neg;
- unsigned char *p, *n, pb = 0;
-
- if (a == NULL)
- return (0);
- neg = a->type & V_ASN1_NEG;
- if (a->length == 0)
- ret = 1;
- else {
- ret = a->length;
- i = a->data[0];
- if (ret == 1 && i == 0)
- neg = 0;
- if (!neg && (i > 127)) {
- pad = 1;
- pb = 0;
- } else if (neg) {
- if (i > 128) {
- pad = 1;
- pb = 0xFF;
- } else if (i == 128) {
- /*
- * Special case: if any other bytes non zero we pad:
- * otherwise we don't.
- */
- for (i = 1; i < a->length; i++)
- if (a->data[i]) {
- pad = 1;
- pb = 0xFF;
- break;
- }
- }
- }
- ret += pad;
- }
- if (pp == NULL)
- return (ret);
- p = *pp;
-
- if (pad)
- *(p++) = pb;
- if (a->length == 0)
- *(p++) = 0;
- else if (!neg)
- memcpy(p, a->data, (unsigned int)a->length);
- else {
- /* Begin at the end of the encoding */
- n = a->data + a->length - 1;
- p += a->length - 1;
- i = a->length;
- /* Copy zeros to destination as long as source is zero */
- while (!*n && i > 1) {
- *(p--) = 0;
- n--;
- i--;
- }
- /* Complement and increment next octet */
- *(p--) = ((*(n--)) ^ 0xff) + 1;
- i--;
- /* Complement any octets left */
- for (; i > 0; i--)
- *(p--) = *(n--) ^ 0xff;
- }
-
- *pp += ret;
- return (ret);
-}
-
-/* Convert just ASN1 INTEGER content octets to ASN1_INTEGER structure */
-
-ASN1_INTEGER *c2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **pp,
- long len)
-{
- ASN1_INTEGER *ret = NULL;
- const unsigned char *p, *pend;
- unsigned char *to, *s;
- int i;
-
- if ((a == NULL) || ((*a) == NULL)) {
- if ((ret = M_ASN1_INTEGER_new()) == NULL)
- return (NULL);
- ret->type = V_ASN1_INTEGER;
- } else
- ret = (*a);
-
- p = *pp;
- pend = p + len;
-
- /*
- * We must OPENSSL_malloc stuff, even for 0 bytes otherwise it signifies
- * a missing NULL parameter.
- */
- s = (unsigned char *)OPENSSL_malloc((int)len + 1);
- if (s == NULL) {
- i = ERR_R_MALLOC_FAILURE;
- goto err;
- }
- to = s;
- if (!len) {
- /*
- * Strictly speaking this is an illegal INTEGER but we tolerate it.
- */
- ret->type = V_ASN1_INTEGER;
- } else if (*p & 0x80) { /* a negative number */
- ret->type = V_ASN1_NEG_INTEGER;
- if ((*p == 0xff) && (len != 1)) {
- p++;
- len--;
- }
- i = len;
- p += i - 1;
- to += i - 1;
- while ((!*p) && i) {
- *(to--) = 0;
- i--;
- p--;
- }
- /*
- * Special case: if all zeros then the number will be of the form FF
- * followed by n zero bytes: this corresponds to 1 followed by n zero
- * bytes. We've already written n zeros so we just append an extra
- * one and set the first byte to a 1. This is treated separately
- * because it is the only case where the number of bytes is larger
- * than len.
- */
- if (!i) {
- *s = 1;
- s[len] = 0;
- len++;
- } else {
- *(to--) = (*(p--) ^ 0xff) + 1;
- i--;
- for (; i > 0; i--)
- *(to--) = *(p--) ^ 0xff;
- }
- } else {
- ret->type = V_ASN1_INTEGER;
- if ((*p == 0) && (len != 1)) {
- p++;
- len--;
- }
- memcpy(s, p, (int)len);
- }
-
- if (ret->data != NULL)
- OPENSSL_free(ret->data);
- ret->data = s;
- ret->length = (int)len;
- if (a != NULL)
- (*a) = ret;
- *pp = pend;
- return (ret);
- err:
- ASN1err(ASN1_F_C2I_ASN1_INTEGER, i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- M_ASN1_INTEGER_free(ret);
- return (NULL);
-}
-
-/*
- * This is a version of d2i_ASN1_INTEGER that ignores the sign bit of ASN1
- * integers: some broken software can encode a positive INTEGER with its MSB
- * set as negative (it doesn't add a padding zero).
- */
-
-ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
- long length)
-{
- ASN1_INTEGER *ret = NULL;
- const unsigned char *p;
- unsigned char *s;
- long len;
- int inf, tag, xclass;
- int i;
-
- if ((a == NULL) || ((*a) == NULL)) {
- if ((ret = M_ASN1_INTEGER_new()) == NULL)
- return (NULL);
- ret->type = V_ASN1_INTEGER;
- } else
- ret = (*a);
-
- p = *pp;
- inf = ASN1_get_object(&p, &len, &tag, &xclass, length);
- if (inf & 0x80) {
- i = ASN1_R_BAD_OBJECT_HEADER;
- goto err;
- }
-
- if (tag != V_ASN1_INTEGER) {
- i = ASN1_R_EXPECTING_AN_INTEGER;
- goto err;
- }
-
- /*
- * We must OPENSSL_malloc stuff, even for 0 bytes otherwise it signifies
- * a missing NULL parameter.
- */
- s = (unsigned char *)OPENSSL_malloc((int)len + 1);
- if (s == NULL) {
- i = ERR_R_MALLOC_FAILURE;
- goto err;
- }
- ret->type = V_ASN1_INTEGER;
- if (len) {
- if ((*p == 0) && (len != 1)) {
- p++;
- len--;
- }
- memcpy(s, p, (int)len);
- p += len;
- }
-
- if (ret->data != NULL)
- OPENSSL_free(ret->data);
- ret->data = s;
- ret->length = (int)len;
- if (a != NULL)
- (*a) = ret;
- *pp = p;
- return (ret);
- err:
- ASN1err(ASN1_F_D2I_ASN1_UINTEGER, i);
- if ((ret != NULL) && ((a == NULL) || (*a != ret)))
- M_ASN1_INTEGER_free(ret);
- return (NULL);
-}
-
-int ASN1_INTEGER_set(ASN1_INTEGER *a, long v)
-{
- int j, k;
- unsigned int i;
- unsigned char buf[sizeof(long) + 1];
- long d;
-
- a->type = V_ASN1_INTEGER;
- if (a->length < (int)(sizeof(long) + 1)) {
- if (a->data != NULL)
- OPENSSL_free(a->data);
- if ((a->data =
- (unsigned char *)OPENSSL_malloc(sizeof(long) + 1)) != NULL)
- memset((char *)a->data, 0, sizeof(long) + 1);
- }
- if (a->data == NULL) {
- ASN1err(ASN1_F_ASN1_INTEGER_SET, ERR_R_MALLOC_FAILURE);
- return (0);
- }
- d = v;
- if (d < 0) {
- d = -d;
- a->type = V_ASN1_NEG_INTEGER;
- }
-
- for (i = 0; i < sizeof(long); i++) {
- if (d == 0)
- break;
- buf[i] = (int)d & 0xff;
- d >>= 8;
- }
- j = 0;
- for (k = i - 1; k >= 0; k--)
- a->data[j++] = buf[k];
- a->length = j;
- return (1);
-}
-
-long ASN1_INTEGER_get(const ASN1_INTEGER *a)
-{
- int neg = 0, i;
- long r = 0;
-
- if (a == NULL)
- return (0L);
- i = a->type;
- if (i == V_ASN1_NEG_INTEGER)
- neg = 1;
- else if (i != V_ASN1_INTEGER)
- return -1;
-
- if (a->length > (int)sizeof(long)) {
- /* hmm... a bit ugly, return all ones */
- return -1;
- }
- if (a->data == NULL)
- return 0;
-
- for (i = 0; i < a->length; i++) {
- r <<= 8;
- r |= (unsigned char)a->data[i];
- }
- if (neg)
- r = -r;
- return (r);
-}
-
-ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai)
-{
- ASN1_INTEGER *ret;
- int len, j;
-
- if (ai == NULL)
- ret = M_ASN1_INTEGER_new();
- else
- ret = ai;
- if (ret == NULL) {
- ASN1err(ASN1_F_BN_TO_ASN1_INTEGER, ERR_R_NESTED_ASN1_ERROR);
- goto err;
- }
- if (BN_is_negative(bn) && !BN_is_zero(bn))
- ret->type = V_ASN1_NEG_INTEGER;
- else
- ret->type = V_ASN1_INTEGER;
- j = BN_num_bits(bn);
- len = ((j == 0) ? 0 : ((j / 8) + 1));
- if (ret->length < len + 4) {
- unsigned char *new_data = OPENSSL_realloc(ret->data, len + 4);
- if (!new_data) {
- ASN1err(ASN1_F_BN_TO_ASN1_INTEGER, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- ret->data = new_data;
- }
- ret->length = BN_bn2bin(bn, ret->data);
- /* Correct zero case */
- if (!ret->length) {
- ret->data[0] = 0;
- ret->length = 1;
- }
- return (ret);
- err:
- if (ret != ai)
- M_ASN1_INTEGER_free(ret);
- return (NULL);
-}
-
-BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn)
-{
- BIGNUM *ret;
-
- if ((ret = BN_bin2bn(ai->data, ai->length, bn)) == NULL)
- ASN1err(ASN1_F_ASN1_INTEGER_TO_BN, ASN1_R_BN_LIB);
- else if (ai->type == V_ASN1_NEG_INTEGER)
- BN_set_negative(ret, 1);
- return (ret);
-}
-
-IMPLEMENT_STACK_OF(ASN1_INTEGER)
-
-IMPLEMENT_ASN1_SET_OF(ASN1_INTEGER)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 08:30:48 +0000