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126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
/*
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* Copyright 1998-2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stddef.h>
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#include <openssl/x509.h>
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#include <openssl/asn1.h>
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#include <openssl/asn1t.h>
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#include "crypto/evp.h"
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ASN1_SEQUENCE(X509_ALGOR) = {
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ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT),
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ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY)
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} ASN1_SEQUENCE_END(X509_ALGOR)
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ASN1_ITEM_TEMPLATE(X509_ALGORS) =
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ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR)
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ASN1_ITEM_TEMPLATE_END(X509_ALGORS)
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IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR)
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IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS)
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IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR)
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int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
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{
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if (alg == NULL)
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return 0;
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if (ptype != V_ASN1_UNDEF) {
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if (alg->parameter == NULL)
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alg->parameter = ASN1_TYPE_new();
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if (alg->parameter == NULL)
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return 0;
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}
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ASN1_OBJECT_free(alg->algorithm);
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alg->algorithm = aobj;
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if (ptype == 0)
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return 1;
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if (ptype == V_ASN1_UNDEF) {
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ASN1_TYPE_free(alg->parameter);
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alg->parameter = NULL;
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} else
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ASN1_TYPE_set(alg->parameter, ptype, pval);
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return 1;
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}
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void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
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const void **ppval, const X509_ALGOR *algor)
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{
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if (paobj)
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*paobj = algor->algorithm;
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if (pptype) {
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if (algor->parameter == NULL) {
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*pptype = V_ASN1_UNDEF;
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return;
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} else
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*pptype = algor->parameter->type;
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if (ppval)
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*ppval = algor->parameter->value.ptr;
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}
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}
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/* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
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void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
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{
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int param_type;
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if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
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param_type = V_ASN1_UNDEF;
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else
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param_type = V_ASN1_NULL;
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X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
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}
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int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b)
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{
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int rv;
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rv = OBJ_cmp(a->algorithm, b->algorithm);
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if (rv)
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return rv;
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if (!a->parameter && !b->parameter)
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return 0;
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return ASN1_TYPE_cmp(a->parameter, b->parameter);
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}
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int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src)
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{
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if (src == NULL || dest == NULL)
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return 0;
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if (dest->algorithm)
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ASN1_OBJECT_free(dest->algorithm);
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dest->algorithm = NULL;
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if (dest->parameter)
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ASN1_TYPE_free(dest->parameter);
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dest->parameter = NULL;
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if (src->algorithm)
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if ((dest->algorithm = OBJ_dup(src->algorithm)) == NULL)
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return 0;
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if (src->parameter) {
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dest->parameter = ASN1_TYPE_new();
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if (dest->parameter == NULL)
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return 0;
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/* Assuming this is also correct for a BOOL.
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* set does copy as a side effect.
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*/
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if (ASN1_TYPE_set1(dest->parameter,
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src->parameter->type, src->parameter->value.ptr) == 0)
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return 0;
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}
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return 1;
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}
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