--- /dev/null
+/*
+ * Copyright (c) 2004,2011,2014 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@
+ */
+
+/*
+ * ocspExtensions.cpp - OCSP Extension support.
+ */
+
+#include "ocspExtensions.h"
+#include "ocspdDebug.h"
+#include "ocspdUtils.h"
+#include <Security/oidscrl.h>
+#include <Security/cssmapple.h>
+#include <strings.h>
+#include "ocspdDebug.h"
+#include <security_cdsa_utilities/cssmerrors.h>
+
+#pragma mark ----- base class : OCSCExtension -----
+
+/*
+ * Public means to vend a subclass of this object while decoding.
+ */
+OCSPExtension *OCSPExtension::createFromNSS(
+ SecAsn1CoderRef coder,
+ const NSS_CertExtension &nssExt)
+{
+ const CSSM_OID *extnId = &nssExt.extnId;
+ if(ocspdCompareCssmData(extnId, &CSSMOID_PKIX_OCSP_NONCE)) {
+ return new OCSPNonce(coder, nssExt);
+ }
+ /* more here */
+ else {
+ return new OCSPExtension(coder, nssExt, OET_Unknown);
+ }
+}
+
+/*
+ * Called in two circumstances:
+ *
+ * -- from subclass-specific constructor during decode
+ * -- from createFromNSS (during decode) when we don't recognize the extension ID
+ */
+OCSPExtension::OCSPExtension(
+ SecAsn1CoderRef coder,
+ const NSS_CertExtension &nssExt,
+ OCSPExtensionTag tag)
+ : mNssExt(const_cast<NSS_CertExtension *>(&nssExt)),
+ mCoder(coder),
+ mTag(tag),
+ mUnrecognizedCritical(false)
+{
+ if((nssExt.critical.Data != NULL) && (*nssExt.critical.Data != 0)) {
+ mCritical = true;
+ }
+ else {
+ mCritical = false;
+ }
+ if(mCritical && (tag == OET_Unknown)) {
+ mUnrecognizedCritical = true;
+ }
+}
+
+/*
+ * Constructor during encode, called from subclass-specific constructorÊ(which
+ * always has all of the subclass-specific arguments).
+ */
+OCSPExtension::OCSPExtension(
+ SecAsn1CoderRef coder, // passed to subclass constructor
+ const CSSM_OID &extnId, // subclass knows this
+ OCSPExtensionTag tag, // subclass knows this
+ bool critical) // passed to subclass constructor
+ : mNssExt(NULL), // we'll cook this up
+ mCoder(coder),
+ mCritical(critical),
+ mTag(tag),
+ mUnrecognizedCritical(false) // this is a tautology
+{
+ mNssExt = (NSS_CertExtension *)SecAsn1Malloc(coder, sizeof(NSS_CertExtension));
+ memset(mNssExt, 0, sizeof(NSS_CertExtension));
+ SecAsn1AllocCopyItem(coder, &extnId, &mNssExt->extnId);
+ /* alloc one byte for critical flag */
+ SecAsn1AllocItem(coder, &mNssExt->critical, 1);
+ mNssExt->critical.Data[0] = critical ? 0xff : 0;
+}
+
+OCSPExtension::~OCSPExtension()
+{
+ /* nothing for now, need a virtual function for dynamic casts */
+}
+
+#pragma mark ---- Nonce -----
+
+/*
+ * Public constructor on encode
+ */
+OCSPNonce::OCSPNonce(
+ SecAsn1CoderRef coder,
+ bool critical,
+ const CSSM_DATA &nonce)
+ : OCSPExtension(coder, CSSMOID_PKIX_OCSP_NONCE, OET_Nonce, critical)
+{
+ /*
+ * They don't get much simpler than this: the nonce is the literal value
+ * of NSS_CertExtension.value.
+ */
+ SecAsn1AllocCopyItem(coder, &nonce, &mNonce);
+ setDerValue(mNonce);
+}
+
+/* construct during decode, called only by OCSPExtension::createFromNSS() */
+OCSPNonce::OCSPNonce(
+ SecAsn1CoderRef coder,
+ const NSS_CertExtension &nssExt)
+ : OCSPExtension(coder, nssExt, OET_Nonce)
+{
+ /* only subclass-specific stuff is the nonce, no further processing needed */
+ SecAsn1AllocCopyItem(coder, &nssExt.value, &mNonce);
+}
+
+OCSPNonce::~OCSPNonce()
+{
+ /* nothing for now, need a virtual function for dynamic casts */
+}
+
+#pragma mark ----- Extensions array -----
+
+OCSPExtensions::OCSPExtensions(
+ NSS_CertExtension **nssExts)
+ : mCoder(NULL), mNumExtensions(0), mExtensions(NULL)
+{
+ SecAsn1CoderCreate(&mCoder);
+ mNumExtensions = ocspdArraySize((const void **)nssExts);
+ if(mNumExtensions == 0) {
+ return;
+ }
+
+ mExtensions = (OCSPExtension **)SecAsn1Malloc(mCoder,
+ (mNumExtensions * sizeof(OCSPExtension *)));
+ for(unsigned dex=0; dex<mNumExtensions; dex++) {
+ try {
+ mExtensions[dex] =
+ OCSPExtension::createFromNSS(mCoder, *nssExts[dex]);
+ if(mExtensions[dex] == NULL) {
+ ocspdErrorLog("OCSPExtensions: extension failure (NULL) dex %u\n", dex);
+ CssmError::throwMe(CSSMERR_APPLETP_OCSP_BAD_RESPONSE);
+ }
+ if(mExtensions[dex]->unrecognizedCritical()) {
+ ocspdErrorLog("OCSPExtensions: unrecognized critical extension\n");
+ CssmError::throwMe(CSSMERR_APPLETP_OCSP_BAD_RESPONSE);
+ }
+ }
+ catch (...) {
+ ocspdErrorLog("OCSPExtensions: extension failure dex %u\n", dex);
+ CssmError::throwMe(CSSMERR_APPLETP_OCSP_BAD_RESPONSE);
+ }
+ }
+}
+
+OCSPExtensions::~OCSPExtensions()
+{
+ for(unsigned dex=0; dex<mNumExtensions; dex++) {
+ delete mExtensions[dex];
+ }
+ if(mCoder) {
+ SecAsn1CoderRelease(mCoder);
+ }
+}
+
+/* find parsed extension in mExtensions with specified OID */
+OCSPExtension *OCSPExtensions::findExtension(
+ const CSSM_OID &oid)
+{
+ for(unsigned dex=0; dex<mNumExtensions; dex++) {
+ const CSSM_OID &extnId = mExtensions[dex]->extnId();
+ if(ocspdCompareCssmData(&oid, &extnId)) {
+ return mExtensions[dex];
+ }
+ }
+ return NULL;
+}
+
projects / apple / security.git / blobdiff