diff options
Diffstat (limited to 'openssl/crypto/cms/cms_io.c')
| -rw-r--r-- | openssl/crypto/cms/cms_io.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/openssl/crypto/cms/cms_io.c b/openssl/crypto/cms/cms_io.c new file mode 100644 index 000000000..30f5ddfe6 --- /dev/null +++ b/openssl/crypto/cms/cms_io.c @@ -0,0 +1,140 @@ +/* crypto/cms/cms_io.c */ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project. + */ +/* ==================================================================== + * Copyright (c) 2008 The OpenSSL Project. All rights reserved. + * + * 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 above 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 acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED 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 OpenSSL PROJECT OR + * ITS 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. + * ==================================================================== + */ + +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/err.h> +#include <openssl/pem.h> +#include "cms.h" +#include "cms_lcl.h" + +CMS_ContentInfo *d2i_CMS_bio(BIO *bp, CMS_ContentInfo **cms) + { + return ASN1_item_d2i_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); + } + +int i2d_CMS_bio(BIO *bp, CMS_ContentInfo *cms) + { + return ASN1_item_i2d_bio(ASN1_ITEM_rptr(CMS_ContentInfo), bp, cms); + } + +IMPLEMENT_PEM_rw_const(CMS, CMS_ContentInfo, PEM_STRING_CMS, CMS_ContentInfo) + +/* Callback for int_smime_write_ASN1 */ + +static int cms_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags, + const ASN1_ITEM *it) + { + CMS_ContentInfo *cms = (CMS_ContentInfo *)val; + BIO *tmpbio, *cmsbio; + int r = 0; + + if (!(flags & SMIME_DETACHED)) + { + SMIME_crlf_copy(data, out, flags); + return 1; + } + + /* Let CMS code prepend any needed BIOs */ + + cmsbio = CMS_dataInit(cms, out); + + if (!cmsbio) + return 0; + + /* Copy data across, passing through filter BIOs for processing */ + SMIME_crlf_copy(data, cmsbio, flags); + + /* Finalize structure */ + if (CMS_dataFinal(cms, cmsbio) <= 0) + goto err; + + r = 1; + + err: + + /* Now remove any digests prepended to the BIO */ + + while (cmsbio != out) + { + tmpbio = BIO_pop(cmsbio); + BIO_free(cmsbio); + cmsbio = tmpbio; + } + + return 1; + + } + + +int SMIME_write_CMS(BIO *bio, CMS_ContentInfo *cms, BIO *data, int flags) + { + STACK_OF(X509_ALGOR) *mdalgs; + int ctype_nid = OBJ_obj2nid(cms->contentType); + int econt_nid = OBJ_obj2nid(CMS_get0_eContentType(cms)); + if (ctype_nid == NID_pkcs7_signed) + mdalgs = cms->d.signedData->digestAlgorithms; + else + mdalgs = NULL; + + return int_smime_write_ASN1(bio, (ASN1_VALUE *)cms, data, flags, + ctype_nid, econt_nid, mdalgs, + cms_output_data, + ASN1_ITEM_rptr(CMS_ContentInfo)); + } + +CMS_ContentInfo *SMIME_read_CMS(BIO *bio, BIO **bcont) + { + return (CMS_ContentInfo *)SMIME_read_ASN1(bio, bcont, + ASN1_ITEM_rptr(CMS_ContentInfo)); + } |