| 1 | /*
|
|---|
| 2 | * Copyright 1998-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 3 | *
|
|---|
| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
|
|---|
| 5 | * this file except in compliance with the License. You can obtain a copy
|
|---|
| 6 | * in the file LICENSE in the source distribution or at
|
|---|
| 7 | * https://www.openssl.org/source/license.html
|
|---|
| 8 | */
|
|---|
| 9 |
|
|---|
| 10 | #include <stddef.h>
|
|---|
| 11 | #include <openssl/x509.h>
|
|---|
| 12 | #include <openssl/asn1.h>
|
|---|
| 13 | #include <openssl/asn1t.h>
|
|---|
| 14 | #include "crypto/evp.h"
|
|---|
| 15 |
|
|---|
| 16 | ASN1_SEQUENCE(X509_ALGOR) = {
|
|---|
| 17 | ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT),
|
|---|
| 18 | ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY)
|
|---|
| 19 | } ASN1_SEQUENCE_END(X509_ALGOR)
|
|---|
| 20 |
|
|---|
| 21 | ASN1_ITEM_TEMPLATE(X509_ALGORS) =
|
|---|
| 22 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR)
|
|---|
| 23 | ASN1_ITEM_TEMPLATE_END(X509_ALGORS)
|
|---|
| 24 |
|
|---|
| 25 | IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR)
|
|---|
| 26 | IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS)
|
|---|
| 27 | IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR)
|
|---|
| 28 |
|
|---|
| 29 | int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
|
|---|
| 30 | {
|
|---|
| 31 | if (alg == NULL)
|
|---|
| 32 | return 0;
|
|---|
| 33 |
|
|---|
| 34 | if (ptype != V_ASN1_UNDEF) {
|
|---|
| 35 | if (alg->parameter == NULL)
|
|---|
| 36 | alg->parameter = ASN1_TYPE_new();
|
|---|
| 37 | if (alg->parameter == NULL)
|
|---|
| 38 | return 0;
|
|---|
| 39 | }
|
|---|
| 40 |
|
|---|
| 41 | ASN1_OBJECT_free(alg->algorithm);
|
|---|
| 42 | alg->algorithm = aobj;
|
|---|
| 43 |
|
|---|
| 44 | if (ptype == 0)
|
|---|
| 45 | return 1;
|
|---|
| 46 | if (ptype == V_ASN1_UNDEF) {
|
|---|
| 47 | ASN1_TYPE_free(alg->parameter);
|
|---|
| 48 | alg->parameter = NULL;
|
|---|
| 49 | } else
|
|---|
| 50 | ASN1_TYPE_set(alg->parameter, ptype, pval);
|
|---|
| 51 | return 1;
|
|---|
| 52 | }
|
|---|
| 53 |
|
|---|
| 54 | void X509_ALGOR_get0(const ASN1_OBJECT **paobj, int *pptype,
|
|---|
| 55 | const void **ppval, const X509_ALGOR *algor)
|
|---|
| 56 | {
|
|---|
| 57 | if (paobj)
|
|---|
| 58 | *paobj = algor->algorithm;
|
|---|
| 59 | if (pptype) {
|
|---|
| 60 | if (algor->parameter == NULL) {
|
|---|
| 61 | *pptype = V_ASN1_UNDEF;
|
|---|
| 62 | return;
|
|---|
| 63 | } else
|
|---|
| 64 | *pptype = algor->parameter->type;
|
|---|
| 65 | if (ppval)
|
|---|
| 66 | *ppval = algor->parameter->value.ptr;
|
|---|
| 67 | }
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
|
|---|
| 71 |
|
|---|
| 72 | void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
|
|---|
| 73 | {
|
|---|
| 74 | int param_type;
|
|---|
| 75 |
|
|---|
| 76 | if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
|
|---|
| 77 | param_type = V_ASN1_UNDEF;
|
|---|
| 78 | else
|
|---|
| 79 | param_type = V_ASN1_NULL;
|
|---|
| 80 |
|
|---|
| 81 | X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
|
|---|
| 82 |
|
|---|
| 83 | }
|
|---|
| 84 |
|
|---|
| 85 | int X509_ALGOR_cmp(const X509_ALGOR *a, const X509_ALGOR *b)
|
|---|
| 86 | {
|
|---|
| 87 | int rv;
|
|---|
| 88 | rv = OBJ_cmp(a->algorithm, b->algorithm);
|
|---|
| 89 | if (rv)
|
|---|
| 90 | return rv;
|
|---|
| 91 | if (!a->parameter && !b->parameter)
|
|---|
| 92 | return 0;
|
|---|
| 93 | return ASN1_TYPE_cmp(a->parameter, b->parameter);
|
|---|
| 94 | }
|
|---|
| 95 |
|
|---|
| 96 | int X509_ALGOR_copy(X509_ALGOR *dest, const X509_ALGOR *src)
|
|---|
| 97 | {
|
|---|
| 98 | if (src == NULL || dest == NULL)
|
|---|
| 99 | return 0;
|
|---|
| 100 |
|
|---|
| 101 | if (dest->algorithm)
|
|---|
| 102 | ASN1_OBJECT_free(dest->algorithm);
|
|---|
| 103 | dest->algorithm = NULL;
|
|---|
| 104 |
|
|---|
| 105 | if (dest->parameter)
|
|---|
| 106 | ASN1_TYPE_free(dest->parameter);
|
|---|
| 107 | dest->parameter = NULL;
|
|---|
| 108 |
|
|---|
| 109 | if (src->algorithm)
|
|---|
| 110 | if ((dest->algorithm = OBJ_dup(src->algorithm)) == NULL)
|
|---|
| 111 | return 0;
|
|---|
| 112 |
|
|---|
| 113 | if (src->parameter) {
|
|---|
| 114 | dest->parameter = ASN1_TYPE_new();
|
|---|
| 115 | if (dest->parameter == NULL)
|
|---|
| 116 | return 0;
|
|---|
| 117 |
|
|---|
| 118 | /* Assuming this is also correct for a BOOL.
|
|---|
| 119 | * set does copy as a side effect.
|
|---|
| 120 | */
|
|---|
| 121 | if (ASN1_TYPE_set1(dest->parameter,
|
|---|
| 122 | src->parameter->type, src->parameter->value.ptr) == 0)
|
|---|
| 123 | return 0;
|
|---|
| 124 | }
|
|---|
| 125 | return 1;
|
|---|
| 126 | }
|
|---|
