X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_codesigning/lib/reqinterp.h

diff --git a/Security/libsecurity_codesigning/lib/reqinterp.h b/Security/libsecurity_codesigning/lib/reqinterp.h
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+/*
+ * Copyright (c) 2006-2007,2011 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@
+ */
+
+//
+// reqinterp - Requirement language (exprOp) interpreter
+//
+#ifndef _H_REQINTERP
+#define _H_REQINTERP
+
+#include <security_codesigning/reqreader.h>
+#include <Security/SecTrustSettings.h>
+#include <security_cdsa_utilities/cssmdata.h>	// CssmOid
+
+namespace Security {
+namespace CodeSigning {
+
+
+//
+// An interpreter for exprForm-type requirements.
+// This is a simple Polish Notation stack evaluator.
+//	
+class Requirement::Interpreter : public Requirement::Reader {	
+public:
+	Interpreter(const Requirement *req, const Context *ctx)	: Reader(req), mContext(ctx) { }
+	
+	bool evaluate();
+	
+protected:
+	class Match {
+	public:
+		Match(Interpreter &interp);		// reads match postfix from interp
+		Match(CFStringRef value, MatchOperation op) : mValue(value), mOp(op) { } // explicit
+		Match() : mValue(NULL), mOp(matchExists) { } // explict test for presence
+		bool operator () (CFTypeRef candidate) const; // match to candidate
+
+	protected:
+		bool inequality(CFTypeRef candidate, CFStringCompareFlags flags, CFComparisonResult outcome, bool negate) const;
+		
+	private:
+		CFCopyRef<CFStringRef> mValue;	// match value
+		MatchOperation mOp;				// type of match
+	};
+	
+protected:
+	bool infoKeyValue(const std::string &key, const Match &match);
+	bool entitlementValue(const std::string &key, const Match &match);
+	bool certFieldValue(const string &key, const Match &match, SecCertificateRef cert);
+	bool certFieldGeneric(const string &key, const Match &match, SecCertificateRef cert);
+	bool certFieldGeneric(const CssmOid &oid, const Match &match, SecCertificateRef cert);
+	bool certFieldPolicy(const string &key, const Match &match, SecCertificateRef cert);
+	bool certFieldPolicy(const CssmOid &oid, const Match &match, SecCertificateRef cert);
+	bool verifyAnchor(SecCertificateRef cert, const unsigned char *digest);
+	bool appleSigned();
+	bool appleAnchored();
+	bool trustedCerts();
+	bool trustedCert(int slot);
+	
+	static SecTrustSettingsResult trustSetting(SecCertificateRef cert, bool isAnchor);
+	
+private:
+	const Context * const mContext;
+};
+
+
+}	// CodeSigning
+}	// Security
+
+#endif //_H_REQINTERP