Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cdsa_utilities / lib / acl_codesigning.h

diff --git a/Security/libsecurity_cdsa_utilities/lib/acl_codesigning.h b/Security/libsecurity_cdsa_utilities/lib/acl_codesigning.h
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+/*
+ * Copyright (c) 2000-2004,2006,2011,2014 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@
+ */
+
+
+//
+// acl_codesigning - ACL subject for signature of calling application
+//
+// Note:
+// Once upon a time, a code signature was a single binary blob, a "signature".
+// Then we added an optional second blob, a "comment". The comment was only
+// ancilliary (non-security) data first, but then we added more security data
+// to it later. Now, the security-relevant data is kept in a (signature, comment)
+// pair, all of which is relevant for the security of such subjects.
+// Don't read any particular semantics into this separation. It is historical only
+// (having to do with backward binary compatibility of ACL blobs).
+//
+#ifndef _H_ACL_CODESIGNING
+#define _H_ACL_CODESIGNING
+
+#include <security_cdsa_utilities/cssmdata.h>
+#include <security_cdsa_utilities/cssmacl.h>
+#include <security_cdsa_utilities/osxverifier.h>
+
+namespace Security {
+
+
+//
+// The CodeSignature subject type matches a code signature applied to the
+// disk image that originated the client process.
+//
+class CodeSignatureAclSubject : public AclSubject, public OSXVerifier {
+public:
+       class Maker; friend class Maker;
+       
+       static const size_t commentBagAlignment = 4;
+       
+    CodeSignatureAclSubject(const SHA1::Byte *hash, const std::string &path)
+               : AclSubject(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE), OSXVerifier(hash, path) { }
+
+       CodeSignatureAclSubject(const OSXVerifier &verifier)
+               : AclSubject(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE), OSXVerifier(verifier) { }
+       
+    bool validate(const AclValidationContext &baseCtx) const;
+    CssmList toList(Allocator &alloc) const;
+    
+    void exportBlob(Writer::Counter &pub, Writer::Counter &priv);
+    void exportBlob(Writer &pub, Writer &priv);
+       
+       IFDUMP(void debugDump() const);
+    
+public:
+    class Environment : public virtual AclValidationEnvironment {
+    public:
+               virtual bool verifyCodeSignature(const OSXVerifier &verifier,
+                       const AclValidationContext &context) = 0;
+    };
+
+public:
+    class Maker : public AclSubject::Maker {
+    public:
+       Maker()
+               : AclSubject::Maker(CSSM_ACL_SUBJECT_TYPE_CODE_SIGNATURE) { }
+       CodeSignatureAclSubject *make(const TypedList &list) const;
+       CodeSignatureAclSubject *make(Version version, Reader &pub, Reader &priv) const;
+       
+       private:
+               CodeSignatureAclSubject *make(const SHA1::Byte *hash, const CssmData &commentBag) const;
+    };
+};
+
+} // end namespace Security
+
+
+
+#endif //_H_ACL_CODESIGNING