Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_asn1 / lib / pkcs7Templates.c

diff --git a/Security/libsecurity_asn1/lib/pkcs7Templates.c b/Security/libsecurity_asn1/lib/pkcs7Templates.c
new file mode 100644 (file)
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+++ b/Security/libsecurity_asn1/lib/pkcs7Templates.c
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+/*
+ * Copyright (c) 2003-2004,2008,2010,2012 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*
+ * pkcs7Templates.cpp
+ */
+
+#include <stddef.h>
+#include "pkcs7Templates.h"
+#include "keyTemplates.h"      /* NSS_AlgorithmIDTemplate */
+#include "SecAsn1Templates.h"
+#include "nssUtils.h"
+#include "oidsattr.h"
+
+const SecAsn1Template NSS_P7_DigestInfoTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(NSS_P7_DigestInfo) },
+    { SEC_ASN1_INLINE,
+         offsetof(NSS_P7_DigestInfo,digestAlgorithm),
+         kSecAsn1AlgorithmIDTemplate },
+    { SEC_ASN1_OCTET_STRING,
+         offsetof(NSS_P7_DigestInfo,digest) },
+    { 0 }
+};
+
+/*
+ * Uninterpreted ContentInfo, with content stripped from its
+ * EXPLICIT CONTEXT_SPECIFIC wrapper
+ */
+const SecAsn1Template NSS_P7_RawContentInfoTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(NSS_P7_RawContentInfo) },
+    { SEC_ASN1_OBJECT_ID,
+         offsetof(NSS_P7_RawContentInfo,contentType) },
+       { SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_EXPLICIT | 
+         SEC_ASN1_CONSTRUCTED | SEC_ASN1_OPTIONAL | 0,
+         offsetof(NSS_P7_RawContentInfo,content),
+         kSecAsn1AnyTemplate },
+    { 0 }
+};
+
+/*
+ * Individual ContentInfo.content templates
+ */
+const SecAsn1Template NSS_P7_EncrContentInfoTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(NSS_P7_EncrContentInfo) },
+    { SEC_ASN1_OBJECT_ID,
+         offsetof(NSS_P7_EncrContentInfo,contentType) },
+    { SEC_ASN1_INLINE,
+         offsetof(NSS_P7_EncrContentInfo,encrAlg),
+         kSecAsn1AlgorithmIDTemplate },
+       { SEC_ASN1_CONTEXT_SPECIFIC | SEC_ASN1_OPTIONAL | 0,
+         offsetof(NSS_P7_EncrContentInfo,encrContent),
+         kSecAsn1OctetStringTemplate },
+    { 0 }
+};
+
+const SecAsn1Template NSS_P7_EncryptedDataTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(NSS_P7_EncryptedData) },
+       { SEC_ASN1_INTEGER,
+         offsetof(NSS_P7_EncryptedData,version) },
+       { SEC_ASN1_INLINE,
+         offsetof(NSS_P7_EncryptedData,contentInfo),
+         NSS_P7_EncrContentInfoTemplate },
+   { 0 }
+};
+
+const SecAsn1Template NSS_P7_PtrToEncryptedDataTemplate[] = {
+    { SEC_ASN1_POINTER, 0, NSS_P7_EncryptedDataTemplate }
+};
+
+/*
+ * Decoded ContentInfo via SEC_ASN1_DYNAMIC
+ */
+ 
+static const SecAsn1Template * NSS_P7_ContentInfoChooser(
+       void *arg,                      // --> NSS_P7_DecodedContentInfo
+       Boolean enc,
+       const char *buf,        // on decode, tag byte
+       void *dest)                     // --> NSS_P7_DecodedContentInfo.content
+{
+       NSS_P7_DecodedContentInfo *dci = 
+               (NSS_P7_DecodedContentInfo *)arg;
+       const SecAsn1Template *templ = NULL;
+       NSS_P7_CI_Type type = CT_None;
+       
+       if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_Data)) {
+               templ = kSecAsn1PointerToOctetStringTemplate;
+               type = CT_Data;
+       }
+       else if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_EncryptedData)) {
+               templ = NSS_P7_PtrToEncryptedDataTemplate;
+               type = CT_EncryptedData;
+       }
+       else if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_SignedData)) {
+               templ = NSS_P7_PtrToSignedDataTemplate;
+               type = CT_SignedData;
+       }
+       else if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_EnvelopedData)) {
+               templ = NSS_P7_PtrToEnvelDataTemplate;
+               type = CT_EnvData;
+       }
+       else if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_SignedAndEnvelopedData)) {
+               templ = NSS_P7_PtrToSignEnvelDataTemplate;
+               type = CT_SignedEnvData;
+       }
+       else if(nssCompareSecAsn1Items(&dci->contentType,
+                       &CSSMOID_PKCS7_DigestedData)) {
+               templ = NSS_P7_PtrToDigestedDataTemplate;
+               type = CT_DigestData;
+       }
+       /* add more here when we implement them */
+       else {
+               return kSecAsn1PointerToAnyTemplate;
+       }
+       if(!enc) {
+               dci->type = type;
+       }
+       return templ;
+}
+
+static const SecAsn1TemplateChooserPtr NSS_P7_ContentInfoChooserPtr = 
+       NSS_P7_ContentInfoChooser;
+
+const SecAsn1Template NSS_P7_DecodedContentInfoTemplate[] = {
+    { SEC_ASN1_SEQUENCE,
+      0, NULL, sizeof(NSS_P7_DecodedContentInfo) },
+    { SEC_ASN1_OBJECT_ID,
+         offsetof(NSS_P7_DecodedContentInfo,contentType) },
+    { SEC_ASN1_OPTIONAL | SEC_ASN1_DYNAMIC | 
+                       SEC_ASN1_EXPLICIT | SEC_ASN1_CONSTRUCTED | 
+                       SEC_ASN1_CONTEXT_SPECIFIC | 0,
+         offsetof(NSS_P7_DecodedContentInfo,content),
+         &NSS_P7_ContentInfoChooserPtr },
+   { 0 }
+};