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114 lines
4.9 KiB
C
114 lines
4.9 KiB
C
/* crypto/asn1/x_req.c */
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <stdio.h>
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#include "cryptlib.h"
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#include <openssl/asn1t.h>
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#include <openssl/x509.h>
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/* X509_REQ_INFO is handled in an unusual way to get round
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* invalid encodings. Some broken certificate requests don't
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* encode the attributes field if it is empty. This is in
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* violation of PKCS#10 but we need to tolerate it. We do
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* this by making the attributes field OPTIONAL then using
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* the callback to initialise it to an empty STACK.
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*
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* This means that the field will be correctly encoded unless
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* we NULL out the field.
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*
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* As a result we no longer need the req_kludge field because
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* the information is now contained in the attributes field:
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* 1. If it is NULL then it's the invalid omission.
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* 2. If it is empty it is the correct encoding.
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* 3. If it is not empty then some attributes are present.
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*
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*/
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static int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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void *exarg)
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{
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X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval;
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if(operation == ASN1_OP_NEW_POST) {
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rinf->attributes = sk_X509_ATTRIBUTE_new_null();
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if(!rinf->attributes) return 0;
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}
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return 1;
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}
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ASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = {
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ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER),
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ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME),
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ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY),
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/* This isn't really OPTIONAL but it gets round invalid
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* encodings
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*/
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ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0)
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} ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO)
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IMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO)
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ASN1_SEQUENCE_ref(X509_REQ, 0, CRYPTO_LOCK_X509_REQ) = {
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ASN1_SIMPLE(X509_REQ, req_info, X509_REQ_INFO),
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ASN1_SIMPLE(X509_REQ, sig_alg, X509_ALGOR),
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ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING)
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} ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ)
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IMPLEMENT_ASN1_FUNCTIONS(X509_REQ)
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IMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ)
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