--- /dev/null
+/*
+ * Copyright (c) 2016 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 <string>
+
+#include <dispatch/dispatch.h>
+#include <xpc/xpc.h>
+#include <unistd.h>
+
+#include <security_utilities/unix++.h>
+#include <security_utilities/logging.h>
+
+#include "SecTranslocateClient.hpp"
+#include "SecTranslocateShared.hpp"
+#include "SecTranslocateInterface.hpp"
+
+namespace Security {
+
+namespace SecTranslocate {
+
+using namespace std;
+
+TranslocatorClient::TranslocatorClient(dispatch_queue_t q):syncQ(q)
+{
+ if(syncQ == NULL)
+ {
+ Syslog::critical("SecTranslocate::TranslocatorClient initialized without a queue.");
+ UnixError::throwMe(EINVAL);
+ }
+
+ uint64_t flags = 0;
+ uid_t euid = geteuid();
+
+ /* 0 - is root so it gets the root lsd
+ 1-300 = are treated by launch services as "role users" They share a copy of the LS Database with root
+ and thus must be sent to the root lsd. */
+ if (euid <= 300)
+ {
+ flags |= XPC_CONNECTION_MACH_SERVICE_PRIVILEGED; //forces call to the root lsd
+ }
+
+ service = xpc_connection_create_mach_service(SECTRANSLOCATE_XPC_SERVICE_NAME,
+ syncQ,
+ flags);
+ if (service == NULL)
+ {
+ Syslog::critical("SecTranslocate: TranslocatorClient, failed to create xpc mach service");
+ UnixError::throwMe(ENOMEM);
+ }
+ xpc_connection_set_event_handler(service, ^(xpc_object_t event) {
+ xpc_type_t type = xpc_get_type(event);
+ if (type == XPC_TYPE_ERROR)
+ {
+ Syslog::error("SecTranslocate, client, xpc error: %s", xpc_dictionary_get_string(event, XPC_ERROR_KEY_DESCRIPTION));
+ }
+ else
+ {
+ char* description = xpc_copy_description(event);
+ Syslog::error("SecTranslocate, client, xpc unexpected type: %s", description);
+ free(description);
+ }
+ });
+
+ dispatch_retain(syncQ);
+ xpc_connection_resume(service);
+}
+
+TranslocatorClient::~TranslocatorClient()
+{
+ xpc_connection_cancel(service);
+ dispatch_release(syncQ);
+}
+
+string TranslocatorClient::translocatePathForUser(const TranslocationPath &originalPath, const string &destPath)
+{
+ string outPath;
+
+ if (!originalPath.shouldTranslocate())
+ {
+ return originalPath.getOriginalRealPath(); //return original path if we shouldn't translocate
+ }
+
+ //We should run translocated, so get a translocation point
+ xpc_object_t msg = xpc_dictionary_create(NULL, NULL, 0);
+
+ if( msg == NULL)
+ {
+ Syslog::error("SecTranslocate: TranslocatorClient, failed to allocate message to send");
+ UnixError::throwMe(ENOMEM);
+ }
+
+ xpc_dictionary_set_string(msg, kSecTranslocateXPCMessageFunction, kSecTranslocateXPCFuncCreate);
+ /* send the original real path rather than the calculated path to let the server do all the work */
+ xpc_dictionary_set_string(msg, kSecTranslocateXPCMessageOriginalPath, originalPath.getOriginalRealPath().c_str());
+ if(!destPath.empty())
+ {
+ xpc_dictionary_set_string(msg, kSecTranslocateXPCMessageDestinationPath, destPath.c_str());
+ }
+
+ xpc_object_t reply = xpc_connection_send_message_with_reply_sync(service, msg);
+ xpc_release(msg);
+
+ if(reply == NULL)
+ {
+ Syslog::error("SecTranslocate, TranslocatorClient, create, no reply returned");
+ UnixError::throwMe(ENOMEM);
+ }
+
+ xpc_type_t type = xpc_get_type(reply);
+ if (type == XPC_TYPE_DICTIONARY)
+ {
+ if(int64_t error = xpc_dictionary_get_int64(reply, kSecTranslocateXPCReplyError))
+ {
+ Syslog::error("SecTranslocate, TranslocatorClient, create, error received %lld", error);
+ xpc_release(reply);
+ UnixError::throwMe((int)error);
+ }
+ const char * result = xpc_dictionary_get_string(reply, kSecTranslocateXPCReplySecurePath);
+ if (result == NULL)
+ {
+ Syslog::error("SecTranslocate, TranslocatorClient, create, no result path received");
+ xpc_release(reply);
+ UnixError::throwMe(EINVAL);
+ }
+ outPath=result;
+ xpc_release(reply);
+ }
+ else
+ {
+ const char* errorMsg = NULL;
+ if (type == XPC_TYPE_ERROR)
+ {
+ errorMsg = "SecTranslocate, TranslocatorClient, create, xpc error returned: %s";
+ }
+ else
+ {
+ errorMsg = "SecTranslocate, TranslocatorClient, create, unexpected type of return object: %s";
+ }
+ const char *s = xpc_copy_description(reply);
+ Syslog::error(errorMsg, s);
+ free((char*)s);
+ xpc_release(reply);
+ UnixError::throwMe(EINVAL);
+ }
+
+ return outPath;
+}
+
+void TranslocatorClient::appLaunchCheckin(pid_t pid)
+{
+ xpc_object_t msg = xpc_dictionary_create(NULL, NULL, 0);
+
+ xpc_dictionary_set_string(msg, kSecTranslocateXPCMessageFunction, kSecTranslocateXPCFuncCheckIn);
+ xpc_dictionary_set_int64(msg, kSecTranslocateXPCMessagePid, pid);
+
+ /* no reply expected so just send the message and move along */
+ xpc_connection_send_message(service, msg);
+
+ xpc_release(msg);
+}
+
+bool TranslocatorClient::destroyTranslocatedPathForUser(const string &translocatedPath)
+{
+ Syslog::error("SecTranslocate, TranslocatorClient, delete operation not allowed");
+ UnixError::throwMe(EPERM);
+ return false;
+}
+
+} //namespace SecTranslocate
+} //namespace Security
projects / apple / security.git / blobdiff