195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * All rights reserved. 395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This package is an SSL implementation written 595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * by Eric Young (eay@cryptsoft.com). 695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The implementation was written so as to conform with Netscapes SSL. 795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This library is free for commercial and non-commercial use as long as 995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the following conditions are aheared to. The following conditions 1095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * apply to all code found in this distribution, be it the RC4, RSA, 1195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * included with this distribution is covered by the same copyright terms 1395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 1595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Copyright remains Eric Young's, and as such any Copyright notices in 1695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the code are not to be removed. 1795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * If this package is used in a product, Eric Young should be given attribution 1895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * as the author of the parts of the library used. 1995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This can be in the form of a textual message at program startup or 2095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * in documentation (online or textual) provided with the package. 2195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 2295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Redistribution and use in source and binary forms, with or without 2395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * modification, are permitted provided that the following conditions 2495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * are met: 2595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 1. Redistributions of source code must retain the copyright 2695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * notice, this list of conditions and the following disclaimer. 2795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 2. Redistributions in binary form must reproduce the above copyright 2895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * notice, this list of conditions and the following disclaimer in the 2995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * documentation and/or other materials provided with the distribution. 3095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 3. All advertising materials mentioning features or use of this software 3195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * must display the following acknowledgement: 3295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * "This product includes cryptographic software written by 3395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * Eric Young (eay@cryptsoft.com)" 3495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The word 'cryptographic' can be left out if the rouines from the library 3595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * being used are not cryptographic related :-). 3695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 4. If you include any Windows specific code (or a derivative thereof) from 3795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the apps directory (application code) you must include an acknowledgement: 3895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 3995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 4095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 4995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * SUCH DAMAGE. 5195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 5295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * The licence and distribution terms for any publically available version or 5395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * derivative of this code cannot be changed. i.e. this code cannot simply be 5495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * copied and put under another distribution licence 5595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * [including the GNU Public Licence.] */ 5695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 5795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <stdio.h> 5895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 5995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/asn1t.h> 6095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/thread.h> 6195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley#include <openssl/x509.h> 6295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 6395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley/* X509_REQ_INFO is handled in an unusual way to get round 6495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * invalid encodings. Some broken certificate requests don't 6595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * encode the attributes field if it is empty. This is in 6695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * violation of PKCS#10 but we need to tolerate it. We do 6795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * this by making the attributes field OPTIONAL then using 6895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the callback to initialise it to an empty STACK. 6995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 7095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * This means that the field will be correctly encoded unless 7195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * we NULL out the field. 7295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 7395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * As a result we no longer need the req_kludge field because 7495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * the information is now contained in the attributes field: 7595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 1. If it is NULL then it's the invalid omission. 7695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 2. If it is empty it is the correct encoding. 7795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 3. If it is not empty then some attributes are present. 7895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * 7995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley */ 8095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 8195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langleystatic int rinf_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, 8295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley void *exarg) 8395c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley{ 8495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley X509_REQ_INFO *rinf = (X509_REQ_INFO *)*pval; 8595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 8695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if(operation == ASN1_OP_NEW_POST) { 8795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley rinf->attributes = sk_X509_ATTRIBUTE_new_null(); 8895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley if(!rinf->attributes) return 0; 8995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley } 9095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley return 1; 9195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley} 9295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 9395c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyASN1_SEQUENCE_enc(X509_REQ_INFO, enc, rinf_cb) = { 9495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ_INFO, version, ASN1_INTEGER), 9595c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ_INFO, subject, X509_NAME), 9695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ_INFO, pubkey, X509_PUBKEY), 9795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley /* This isn't really OPTIONAL but it gets round invalid 9895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley * encodings 9995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley */ 10095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_IMP_SET_OF_OPT(X509_REQ_INFO, attributes, X509_ATTRIBUTE, 0) 10195c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley} ASN1_SEQUENCE_END_enc(X509_REQ_INFO, X509_REQ_INFO) 10295c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 10395c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyIMPLEMENT_ASN1_FUNCTIONS(X509_REQ_INFO) 10495c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 10595c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyASN1_SEQUENCE_ref(X509_REQ, 0, CRYPTO_LOCK_X509_REQ) = { 10695c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ, req_info, X509_REQ_INFO), 10795c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ, sig_alg, X509_ALGOR), 10895c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley ASN1_SIMPLE(X509_REQ, signature, ASN1_BIT_STRING) 10995c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley} ASN1_SEQUENCE_END_ref(X509_REQ, X509_REQ) 11095c29f3cd1f6c08c6c0927868683392eea727ccAdam Langley 11195c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyIMPLEMENT_ASN1_FUNCTIONS(X509_REQ) 11295c29f3cd1f6c08c6c0927868683392eea727ccAdam LangleyIMPLEMENT_ASN1_DUP_FUNCTION(X509_REQ) 113