X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_keychain/lib/SecTrustedApplication.cpp?ds=inline

diff --git a/Security/libsecurity_keychain/lib/SecTrustedApplication.cpp b/Security/libsecurity_keychain/lib/SecTrustedApplication.cpp
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+/*
+ * Copyright (c) 2002-2004,2011-2014 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@
+ */
+
+#include <Security/SecTrustedApplicationPriv.h>
+#include <security_keychain/TrustedApplication.h>
+#include <security_keychain/Certificate.h>
+#include <securityd_client/ssclient.h>		// for code equivalence SPIs
+
+#include "SecBridge.h"
+
+
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-function"
+static inline CssmData cfData(CFDataRef data)
+{
+    return CssmData(const_cast<UInt8 *>(CFDataGetBytePtr(data)),
+        CFDataGetLength(data));
+}
+#pragma clang diagnostic pop
+
+
+CFTypeID
+SecTrustedApplicationGetTypeID(void)
+{
+	BEGIN_SECAPI
+
+	return gTypes().TrustedApplication.typeID;
+
+	END_SECAPI1(_kCFRuntimeNotATypeID)
+}
+
+
+OSStatus
+SecTrustedApplicationCreateFromPath(const char *path, SecTrustedApplicationRef *appRef)
+{
+	BEGIN_SECAPI
+	SecPointer<TrustedApplication> app =
+		path ? new TrustedApplication(path) : new TrustedApplication;
+	Required(appRef) = app->handle();
+	END_SECAPI
+}
+
+OSStatus SecTrustedApplicationCopyData(SecTrustedApplicationRef appRef,
+	CFDataRef *dataRef)
+{
+	BEGIN_SECAPI
+	const char *path = TrustedApplication::required(appRef)->path();
+	Required(dataRef) = CFDataCreate(NULL, (const UInt8 *)path, strlen(path) + 1);
+	END_SECAPI
+}
+
+OSStatus SecTrustedApplicationSetData(SecTrustedApplicationRef appRef,
+	CFDataRef dataRef)
+{
+	BEGIN_SECAPI
+	if (!dataRef)
+		return errSecParam;
+	TrustedApplication::required(appRef)->data(dataRef);
+	END_SECAPI
+}
+
+
+OSStatus
+SecTrustedApplicationValidateWithPath(SecTrustedApplicationRef appRef, const char *path)
+{
+	BEGIN_SECAPI
+	TrustedApplication &app = *TrustedApplication::required(appRef);
+	if (!app.verifyToDisk(path))
+		return CSSMERR_CSP_VERIFY_FAILED;
+	END_SECAPI
+}
+
+
+//
+// Convert from/to external data representation
+//
+OSStatus SecTrustedApplicationCopyExternalRepresentation(
+	SecTrustedApplicationRef appRef,
+	CFDataRef *externalRef)
+{
+	BEGIN_SECAPI
+	TrustedApplication &app = *TrustedApplication::required(appRef);
+	Required(externalRef) = app.externalForm();
+	END_SECAPI
+}
+
+OSStatus SecTrustedApplicationCreateWithExternalRepresentation(
+	CFDataRef externalRef,
+	SecTrustedApplicationRef *appRef)
+{
+	BEGIN_SECAPI
+	Required(appRef) = (new TrustedApplication(externalRef))->handle();
+	END_SECAPI
+}
+
+
+OSStatus
+SecTrustedApplicationMakeEquivalent(SecTrustedApplicationRef oldRef,
+	SecTrustedApplicationRef newRef, UInt32 flags)
+{
+	BEGIN_SECAPI
+	if (flags & ~kSecApplicationValidFlags)
+		return errSecParam;
+	SecurityServer::ClientSession ss(Allocator::standard(), Allocator::standard());
+	TrustedApplication *oldApp = TrustedApplication::required(oldRef);
+	TrustedApplication *newApp = TrustedApplication::required(newRef);
+	ss.addCodeEquivalence(oldApp->legacyHash(), newApp->legacyHash(), oldApp->path(),
+		flags & kSecApplicationFlagSystemwide);
+	END_SECAPI
+}
+
+OSStatus
+SecTrustedApplicationRemoveEquivalence(SecTrustedApplicationRef appRef, UInt32 flags)
+{
+	BEGIN_SECAPI
+	if (flags & ~kSecApplicationValidFlags)
+		return errSecParam;
+	SecurityServer::ClientSession ss(Allocator::standard(), Allocator::standard());
+	TrustedApplication *app = TrustedApplication::required(appRef);
+	ss.removeCodeEquivalence(app->legacyHash(), app->path(),
+		flags & kSecApplicationFlagSystemwide);
+	END_SECAPI
+}
+
+
+/*
+ * Check to see if an application at a given path is a candidate for
+ * pre-emptive code equivalency establishment
+ */
+OSStatus
+SecTrustedApplicationIsUpdateCandidate(const char *installroot, const char *path)
+{
+    BEGIN_SECAPI
+
+	// strip installroot
+	if (installroot) {
+		size_t rootlen = strlen(installroot);
+		if (!strncmp(installroot, path, rootlen))
+			path += rootlen - 1;	// keep the slash
+	}
+
+	// look up in database
+	static ModuleNexus<PathDatabase> paths;
+	static ModuleNexus<RecursiveMutex> mutex;
+	StLock<Mutex>_(mutex());
+
+	if (!paths()[path])
+		return CSSMERR_DL_RECORD_NOT_FOUND;	// whatever
+    END_SECAPI
+}
+
+
+/*
+ * Point the system at another system root for equivalence use.
+ * This is for system update installers (only)!
+ */
+OSStatus
+SecTrustedApplicationUseAlternateSystem(const char *systemRoot)
+{
+	BEGIN_SECAPI
+	Required(systemRoot);
+	SecurityServer::ClientSession ss(Allocator::standard(), Allocator::standard());
+	ss.setAlternateSystemRoot(systemRoot);
+	END_SECAPI
+}
+
+
+/*
+ * Gateway between traditional SecTrustedApplicationRefs and the Code Signing
+ * subsystem. Invisible to the naked eye, as of 10.5 (Leopard), these reference
+ * may contain Cod e Signing Requirement objects (SecRequirementRefs). For backward
+ * compatibility, these are handled implicitly at the SecAccess/SecACL layer.
+ * However, Those Who Know can bridge the gap for additional functionality.
+ */
+OSStatus SecTrustedApplicationCreateFromRequirement(const char *description,
+	SecRequirementRef requirement, SecTrustedApplicationRef *appRef)
+{
+	BEGIN_SECAPI
+	if (description == NULL)
+		description = "csreq://";	// default to "generic requirement"
+	SecPointer<TrustedApplication> app = new TrustedApplication(description, requirement);
+	Required(appRef) = app->handle();
+	END_SECAPI
+}
+
+OSStatus SecTrustedApplicationCopyRequirement(SecTrustedApplicationRef appRef,
+	SecRequirementRef *requirement)
+{
+	BEGIN_SECAPI
+	Required(requirement) = TrustedApplication::required(appRef)->requirement();
+	if (*requirement)
+		CFRetain(*requirement);
+	END_SECAPI
+}
+
+
+/*
+ * Create an application group reference.
+ */
+OSStatus SecTrustedApplicationCreateApplicationGroup(const char *groupName,
+	SecCertificateRef anchor, SecTrustedApplicationRef *appRef)
+{
+	BEGIN_SECAPI
+
+	CFRef<SecRequirementRef> req;
+	MacOSError::check(SecRequirementCreateGroup(CFTempString(groupName), anchor,
+		kSecCSDefaultFlags, &req.aref()));
+	string description = string("group://") + groupName;
+	if (anchor) {
+		Certificate *cert = Certificate::required(anchor);
+		const CssmData &hash = cert->publicKeyHash();
+		description = description + "?cert=" + cfString(cert->commonName())
+			+ "&hash=" + hash.toHex();
+	}
+	SecPointer<TrustedApplication> app = new TrustedApplication(description, req);
+	Required(appRef) = app->handle();
+
+	END_SECAPI
+}