Add a warning stipulating how things should be coded in ossl_init_base
[openssl.git] / crypto / pkcs7 / pk7_asn1.c
index 46f0fc9375baa2f9ebfdd51217163e78b336826a..315e1b8132c3017bbc569d41056eb83284c3a9c3 100644 (file)
@@ -1,63 +1,14 @@
-/* pk7_asn.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2000.
- */
-/* ====================================================================
- * Copyright (c) 2000 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/asn1t.h>
 #include <openssl/pkcs7.h>
 #include <openssl/x509.h>
 ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0);
 
 ASN1_ADB(PKCS7) = {
-       ADB_ENTRY(NID_pkcs7_data, ASN1_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING, 0)),
-       ADB_ENTRY(NID_pkcs7_signed, ASN1_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
-       ADB_ENTRY(NID_pkcs7_enveloped, ASN1_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
-       ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
-       ADB_ENTRY(NID_pkcs7_digest, ASN1_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
-       ADB_ENTRY(NID_pkcs7_encrypted, ASN1_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
+        ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING_NDEF, 0)),
+        ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
+        ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
+        ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_NDEF_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
+        ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
+        ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
 } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL);
 
-ASN1_SEQUENCE(PKCS7) = {
-       ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
-       ASN1_ADB_OBJECT(PKCS7)
-}ASN1_SEQUENCE_END(PKCS7)
+/* PKCS#7 streaming support */
+static int pk7_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+                  void *exarg)
+{
+    ASN1_STREAM_ARG *sarg = exarg;
+    PKCS7 **pp7 = (PKCS7 **)pval;
+
+    switch (operation) {
+
+    case ASN1_OP_STREAM_PRE:
+        if (PKCS7_stream(&sarg->boundary, *pp7) <= 0)
+            return 0;
+    case ASN1_OP_DETACHED_PRE:
+        sarg->ndef_bio = PKCS7_dataInit(*pp7, sarg->out);
+        if (!sarg->ndef_bio)
+            return 0;
+        break;
+
+    case ASN1_OP_STREAM_POST:
+    case ASN1_OP_DETACHED_POST:
+        if (PKCS7_dataFinal(*pp7, sarg->ndef_bio) <= 0)
+            return 0;
+        break;
+
+    }
+    return 1;
+}
+
+ASN1_NDEF_SEQUENCE_cb(PKCS7, pk7_cb) = {
+        ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
+        ASN1_ADB_OBJECT(PKCS7)
+}ASN1_NDEF_SEQUENCE_END_cb(PKCS7, PKCS7)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7)
+
+IMPLEMENT_ASN1_NDEF_FUNCTION(PKCS7)
+
 IMPLEMENT_ASN1_DUP_FUNCTION(PKCS7)
 
-ASN1_SEQUENCE(PKCS7_SIGNED) = {
-       ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
-       ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
-       ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
-       ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
-       ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
-       ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
-} ASN1_SEQUENCE_END(PKCS7_SIGNED)
+ASN1_NDEF_SEQUENCE(PKCS7_SIGNED) = {
+        ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
+        ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
+        ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
+        ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
+        ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
+        ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGNED)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED)
 
 /* Minor tweak to operation: free up EVP_PKEY */
-static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
+static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+                 void *exarg)
 {
-       if(operation == ASN1_OP_FREE_POST) {
-               PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
-               EVP_PKEY_free(si->pkey);
-       }
-       return 1;
+    if (operation == ASN1_OP_FREE_POST) {
+        PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
+        EVP_PKEY_free(si->pkey);
+    }
+    return 1;
 }
 
 ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = {
-       ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
-       ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
-       ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
-       /* NB this should be a SET OF but we use a SEQUENCE OF so the
-        * original order * is retained when the structure is reencoded.
-        * Since the attributes are implicitly tagged this will not affect
-        * the encoding.
-        */
-       ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
-       ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
-       ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
-       ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
+        ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
+        ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
+        ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
+        /* NB this should be a SET OF but we use a SEQUENCE OF so the
+         * original order * is retained when the structure is reencoded.
+         * Since the attributes are implicitly tagged this will not affect
+         * the encoding.
+         */
+        ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
+        ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
+        ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
+        ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
 } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
 
 ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = {
-       ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
-       ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
+        ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
+        ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
 } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
 
-ASN1_SEQUENCE(PKCS7_ENVELOPE) = {
-       ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
-       ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
-       ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
-} ASN1_SEQUENCE_END(PKCS7_ENVELOPE)
+ASN1_NDEF_SEQUENCE(PKCS7_ENVELOPE) = {
+        ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
+        ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
+        ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_ENVELOPE)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
 
 /* Minor tweak to operation: free up X509 */
-static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
+static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
+                 void *exarg)
 {
-       if(operation == ASN1_OP_FREE_POST) {
-               PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
-               X509_free(ri->cert);
-       }
-       return 1;
+    if (operation == ASN1_OP_FREE_POST) {
+        PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
+        X509_free(ri->cert);
+    }
+    return 1;
 }
 
 ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = {
-       ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
-       ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
-       ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
-       ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
+        ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
+        ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
+        ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
+        ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
 
-ASN1_SEQUENCE(PKCS7_ENC_CONTENT) = {
-       ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
-       ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
-       ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING, 0)
-} ASN1_SEQUENCE_END(PKCS7_ENC_CONTENT)
+ASN1_NDEF_SEQUENCE(PKCS7_ENC_CONTENT) = {
+        ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
+        ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
+        ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING_NDEF, 0)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_ENC_CONTENT)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
 
-ASN1_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
-       ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
-       ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
-       ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
-       ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
-       ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
-       ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
-       ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
-} ASN1_SEQUENCE_END(PKCS7_SIGN_ENVELOPE)
+ASN1_NDEF_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
+        ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
+        ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
+        ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
+        ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
+        ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
+        ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
+        ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_SIGN_ENVELOPE)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
 
-ASN1_SEQUENCE(PKCS7_ENCRYPT) = {
-       ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
-       ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
-} ASN1_SEQUENCE_END(PKCS7_ENCRYPT)
+ASN1_NDEF_SEQUENCE(PKCS7_ENCRYPT) = {
+        ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
+        ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_ENCRYPT)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
 
-ASN1_SEQUENCE(PKCS7_DIGEST) = {
-       ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
-       ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
-       ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
-       ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
-} ASN1_SEQUENCE_END(PKCS7_DIGEST)
+ASN1_NDEF_SEQUENCE(PKCS7_DIGEST) = {
+        ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
+        ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
+        ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
+        ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
+} ASN1_NDEF_SEQUENCE_END(PKCS7_DIGEST)
 
 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST)
 
 /* Specials for authenticated attributes */
 
-/* When signing attributes we want to reorder them to match the sorted
+/*
+ * When signing attributes we want to reorder them to match the sorted
  * encoding.
  */
 
-ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) = 
-       ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
+ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN)
 
-/* When verifying attributes we need to use the received order. So 
- * we use SEQUENCE OF and tag it to SET OF
+/*
+ * When verifying attributes we need to use the received order. So we use
+ * SEQUENCE OF and tag it to SET OF
  */
 
-ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) = 
-       ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
-                               V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
+ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) =
+        ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
+                                V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY)
+
+IMPLEMENT_ASN1_PRINT_FUNCTION(PKCS7)