mirror of https://github.com/openssl/openssl.git
123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
/*
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* Copyright 2008-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (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 <openssl/asn1t.h>
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#include <openssl/x509.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/cms.h>
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#include "cms_local.h"
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/* unfortunately cannot constify BIO_new_NDEF() due to this and PKCS7_stream() */
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int CMS_stream(unsigned char ***boundary, CMS_ContentInfo *cms)
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{
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ASN1_OCTET_STRING **pos;
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pos = CMS_get0_content(cms);
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if (pos == NULL)
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return 0;
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if (*pos == NULL)
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*pos = ASN1_OCTET_STRING_new();
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if (*pos != NULL) {
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(*pos)->flags |= ASN1_STRING_FLAG_NDEF;
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(*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
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*boundary = &(*pos)->data;
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return 1;
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}
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ERR_raise(ERR_LIB_CMS, ERR_R_CMS_LIB);
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return 0;
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}
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CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms)
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{
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CMS_ContentInfo *ci;
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const CMS_CTX *ctx = ossl_cms_get0_cmsctx(cms == NULL ? NULL : *cms);
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ci = ASN1_item_d2i_bio_ex(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms,
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ossl_cms_ctx_get0_libctx(ctx),
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ossl_cms_ctx_get0_propq(ctx));
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if (ci != NULL) {
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ERR_set_mark();
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ossl_cms_resolve_libctx(ci);
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ERR_pop_to_mark();
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}
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return ci;
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}
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int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms)
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{
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return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms);
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}
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IMPLEMENT_PEM_rw(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo)
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BIO *BIO_new_CMS(BIO *out, CMS_ContentInfo *cms)
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{
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return BIO_new_NDEF(out, (ASN1_VALUE *)cms,
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ASN1_ITEM_rptr(CMS_ContentInfo));
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}
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/* CMS wrappers round generalised stream and MIME routines */
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int i2d_CMS_bio_stream(BIO *out, CMS_ContentInfo *cms, BIO *in, int flags)
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{
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return i2d_ASN1_bio_stream(out, (ASN1_VALUE *)cms, in, flags,
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ASN1_ITEM_rptr(CMS_ContentInfo));
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}
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int PEM_write_bio_CMS_stream(BIO *out, CMS_ContentInfo *cms, BIO *in,
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int flags)
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{
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return PEM_write_bio_ASN1_stream(out, (ASN1_VALUE *)cms, in, flags,
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"CMS", ASN1_ITEM_rptr(CMS_ContentInfo));
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}
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int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags)
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{
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STACK_OF(X509_ALGOR) *mdalgs;
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int ctype_nid = OBJ_obj2nid(cms->contentType);
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int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms));
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const CMS_CTX *ctx = ossl_cms_get0_cmsctx(cms);
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if (ctype_nid == NID_pkcs7_signed)
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mdalgs = cms->d.signedData->digestAlgorithms;
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else
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mdalgs = NULL;
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return SMIME_write_ASN1_ex(bio, (ASN1_VALUE *)cms, data, flags, ctype_nid,
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econt_nid, mdalgs,
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ASN1_ITEM_rptr(CMS_ContentInfo),
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ossl_cms_ctx_get0_libctx(ctx),
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ossl_cms_ctx_get0_propq(ctx));
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}
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CMS_ContentInfo *SMIME_read_CMS_ex(BIO *bio, int flags, BIO **bcont,
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CMS_ContentInfo **cms)
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{
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CMS_ContentInfo *ci;
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const CMS_CTX *ctx = ossl_cms_get0_cmsctx(cms == NULL ? NULL : *cms);
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ci = (CMS_ContentInfo *)SMIME_read_ASN1_ex(bio, flags, bcont,
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ASN1_ITEM_rptr(CMS_ContentInfo),
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(ASN1_VALUE **)cms,
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ossl_cms_ctx_get0_libctx(ctx),
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ossl_cms_ctx_get0_propq(ctx));
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if (ci != NULL) {
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ERR_set_mark();
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ossl_cms_resolve_libctx(ci);
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ERR_pop_to_mark();
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}
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return ci;
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}
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CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont)
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{
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return SMIME_read_CMS_ex(bio, 0, bcont, NULL);
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}
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