src/diagnostics_relay.c - third_party/libimobiledevice - Git at Google

 /*
  * diagnostics_relay.c
  * com.apple.mobile.diagnostics_relay service implementation.
  *
  * Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */

 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
 #include <string.h>
 #include <stdlib.h>
 #include "diagnostics_relay.h"
 #include "property_list_service.h"
 #include "common/debug.h"

 #define RESULT_SUCCESS 0
 #define RESULT_FAILURE 1
 #define RESULT_UNKNOWN_REQUEST 2

 /**
  * Internally used function for checking the result from a service response
  * plist to a previously sent request.
  *
  * @param dict The plist to evaluate.
  *
  * @return RESULT_SUCCESS when the result is 'Success',
  *         RESULT_FAILURE when the result is 'Failure',
  *         or a negative value if an error occurred during evaluation.
  */
 static int diagnostics_relay_check_result(plist_t dict)
 {
 	int ret = -1;

 	plist_t result_node = plist_dict_get_item(dict, "Status");
 	if (!result_node)
 		return ret;

 	plist_type result_type = plist_get_node_type(result_node);
 	if (result_type == PLIST_STRING) {
 		char *result_value = NULL;

 		plist_get_string_val(result_node, &result_value);

 		if (result_value) {
 			if (!strcmp(result_value, "Success")) {
 				ret = RESULT_SUCCESS;
 			} else if (!strcmp(result_value, "Failure")) {
 				ret = RESULT_FAILURE;
 			} else if (!strcmp(result_value, "UnknownRequest")) {
 				ret = RESULT_UNKNOWN_REQUEST;
 			} else {
 				debug_info("ERROR: unknown result value '%s'", result_value);
 			}
 		}
 		if (result_value)
 			free(result_value);
 	}
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_new(idevice_t device, lockdownd_service_descriptor_t service, diagnostics_relay_client_t *client)
 {
 	if (!device || !service || service->port == 0 || !client || *client) {
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;
 	}

 	property_list_service_client_t plistclient = NULL;
 	if (property_list_service_client_new(device, service, &plistclient) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
 		return DIAGNOSTICS_RELAY_E_MUX_ERROR;
 	}

 	/* create client object */
 	diagnostics_relay_client_t client_loc = (diagnostics_relay_client_t) malloc(sizeof(struct diagnostics_relay_client_private));
 	client_loc->parent = plistclient;

 	/* all done, return success */
 	*client = client_loc;
 	return DIAGNOSTICS_RELAY_E_SUCCESS;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_start_service(idevice_t device, diagnostics_relay_client_t * client, const char* label)
 {
 	diagnostics_relay_error_t err = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	service_client_factory_start_service(device, DIAGNOSTICS_RELAY_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(diagnostics_relay_client_new), &err);
 	return err;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_free(diagnostics_relay_client_t client)
 {
 	if (!client)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	if (property_list_service_client_free(client->parent) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
 		return DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}
 	free(client);
 	return DIAGNOSTICS_RELAY_E_SUCCESS;
 }

 /**
  * Receives a plist from the service.
  *
  * @param client The diagnostics_relay client
  * @param plist The plist to store the received data
  *
  * @return DIAGNOSTICS_RELAY_E_SUCCESS on success,
  *  DIAGNOSTICS_RELAY_E_INVALID_ARG when client or plist is NULL
  */
 static diagnostics_relay_error_t diagnostics_relay_receive(diagnostics_relay_client_t client, plist_t *plist)
 {
 	if (!client || !plist || (plist && *plist))
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	property_list_service_error_t err;

 	err = property_list_service_receive_plist(client->parent, plist);
 	if (err != PROPERTY_LIST_SERVICE_E_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	if (!*plist)
 		ret = DIAGNOSTICS_RELAY_E_PLIST_ERROR;

 	return ret;
 }

 /**
  * Sends a plist to the service.
  *
  * @note This function is low-level and should only be used if you need to send
  *        a new type of message.
  *
  * @param client The diagnostics_relay client
  * @param plist The plist to send
  *
  * @return DIAGNOSTICS_RELAY_E_SUCCESS on success,
  *  DIAGNOSTICS_RELAY_E_INVALID_ARG when client or plist is NULL
  */
 static diagnostics_relay_error_t diagnostics_relay_send(diagnostics_relay_client_t client, plist_t plist)
 {
 	if (!client || !plist)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	property_list_service_error_t err;

 	err = property_list_service_send_xml_plist(client->parent, plist);
 	if (err != PROPERTY_LIST_SERVICE_E_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_goodbye(diagnostics_relay_client_t client)
 {
 	if (!client)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict, "Request", plist_new_string("Goodbye"));

 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		debug_info("did not get goodbye response back");
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	plist_free(dict);
 	dict = NULL;
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_sleep(diagnostics_relay_client_t client)
 {
 	if (!client)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();

 	plist_dict_set_item(dict,"Request", plist_new_string("Sleep"));
 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	plist_free(dict);
 	return ret;
 }

 static diagnostics_relay_error_t internal_diagnostics_relay_action(diagnostics_relay_client_t client, const char* name, diagnostics_relay_action_t flags)
 {
 	if (!client)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict,"Request", plist_new_string(name));

 	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_WAIT_FOR_DISCONNECT) {
 		plist_dict_set_item(dict, "WaitForDisconnect", plist_new_bool(1));
 	}

 	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_DISPLAY_PASS) {
 		plist_dict_set_item(dict, "DisplayPass", plist_new_bool(1));
 	}

 	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_DISPLAY_FAIL) {
 		plist_dict_set_item(dict, "DisplayFail", plist_new_bool(1));
 	}

 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	plist_free(dict);
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_restart(diagnostics_relay_client_t client, diagnostics_relay_action_t flags)
 {
 	return internal_diagnostics_relay_action(client, "Restart", flags);
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_shutdown(diagnostics_relay_client_t client, diagnostics_relay_action_t flags)
 {
 	return internal_diagnostics_relay_action(client, "Shutdown", flags);
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_request_diagnostics(diagnostics_relay_client_t client, const char* type, plist_t* diagnostics)
 {
 	if (!client || diagnostics == NULL)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict,"Request", plist_new_string(type));
 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;
 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		return ret;
 	}

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		plist_free(dict);
 		return ret;
 	}

 	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
 	if (value_node) {
 		*diagnostics = plist_copy(value_node);
 	}

 	plist_free(dict);
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_mobilegestalt(diagnostics_relay_client_t client, plist_t keys, plist_t* result)
 {
 	if (!client || plist_get_node_type(keys) != PLIST_ARRAY || result == NULL)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict,"MobileGestaltKeys", plist_copy(keys));
 	plist_dict_set_item(dict,"Request", plist_new_string("MobileGestalt"));
 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;
 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		return ret;
 	}

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		plist_free(dict);
 		return ret;
 	}

 	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
 	if (value_node) {
 		*result = plist_copy(value_node);
 	}

 	plist_free(dict);
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_ioregistry_entry(diagnostics_relay_client_t client, const char* entry_name, const char* entry_class, plist_t* result)
 {
 	if (!client || (entry_name == NULL && entry_class == NULL) || result == NULL)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	if (entry_name)
 		plist_dict_set_item(dict,"EntryName", plist_new_string(entry_name));
 	if (entry_class)
 		plist_dict_set_item(dict,"EntryClass", plist_new_string(entry_class));
 	plist_dict_set_item(dict,"Request", plist_new_string("IORegistry"));
 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;
 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		return ret;
 	}

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		plist_free(dict);
 		return ret;
 	}

 	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
 	if (value_node) {
 		*result = plist_copy(value_node);
 	}

 	plist_free(dict);
 	return ret;
 }

 LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_ioregistry_plane(diagnostics_relay_client_t client, const char* plane, plist_t* result)
 {
 	if (!client || plane == NULL || result == NULL)
 		return DIAGNOSTICS_RELAY_E_INVALID_ARG;

 	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict,"CurrentPlane", plist_new_string(plane));
 	plist_dict_set_item(dict,"Request", plist_new_string("IORegistry"));
 	ret = diagnostics_relay_send(client, dict);
 	plist_free(dict);
 	dict = NULL;

 	ret = diagnostics_relay_receive(client, &dict);
 	if (!dict) {
 		return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
 	}

 	int check = diagnostics_relay_check_result(dict);
 	if (check == RESULT_SUCCESS) {
 		ret = DIAGNOSTICS_RELAY_E_SUCCESS;
 	} else if (check == RESULT_UNKNOWN_REQUEST) {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
 	} else {
 		ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
 	}

 	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
 		plist_free(dict);
 		return ret;
 	}

 	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
 	if (value_node) {
 		*result = plist_copy(value_node);
 	}

 	plist_free(dict);
 	return ret;
 }
	/*
	* diagnostics_relay.c
	* com.apple.mobile.diagnostics_relay service implementation.
	*
	* Copyright (c) 2012 Martin Szulecki, All Rights Reserved.
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#ifdef HAVE_CONFIG_H
	#include <config.h>
	#endif
	#include <string.h>
	#include <stdlib.h>
	#include "diagnostics_relay.h"
	#include "property_list_service.h"
	#include "common/debug.h"

	#define RESULT_SUCCESS 0
	#define RESULT_FAILURE 1
	#define RESULT_UNKNOWN_REQUEST 2

	/**
	* Internally used function for checking the result from a service response
	* plist to a previously sent request.
	*
	* @param dict The plist to evaluate.
	*
	* @return RESULT_SUCCESS when the result is 'Success',
	* RESULT_FAILURE when the result is 'Failure',
	* or a negative value if an error occurred during evaluation.
	*/
	static int diagnostics_relay_check_result(plist_t dict)
	{
	int ret = -1;

	plist_t result_node = plist_dict_get_item(dict, "Status");
	if (!result_node)
	return ret;

	plist_type result_type = plist_get_node_type(result_node);
	if (result_type == PLIST_STRING) {
	char *result_value = NULL;

	plist_get_string_val(result_node, &result_value);

	if (result_value) {
	if (!strcmp(result_value, "Success")) {
	ret = RESULT_SUCCESS;
	} else if (!strcmp(result_value, "Failure")) {
	ret = RESULT_FAILURE;
	} else if (!strcmp(result_value, "UnknownRequest")) {
	ret = RESULT_UNKNOWN_REQUEST;
	} else {
	debug_info("ERROR: unknown result value '%s'", result_value);
	}
	}
	if (result_value)
	free(result_value);
	}
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_new(idevice_t device, lockdownd_service_descriptor_t service, diagnostics_relay_client_t *client)
	{
	if (!device \|\| !service \|\| service->port == 0 \|\| !client \|\| *client) {
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;
	}

	property_list_service_client_t plistclient = NULL;
	if (property_list_service_client_new(device, service, &plistclient) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
	return DIAGNOSTICS_RELAY_E_MUX_ERROR;
	}

	/* create client object */
	diagnostics_relay_client_t client_loc = (diagnostics_relay_client_t) malloc(sizeof(struct diagnostics_relay_client_private));
	client_loc->parent = plistclient;

	/* all done, return success */
	*client = client_loc;
	return DIAGNOSTICS_RELAY_E_SUCCESS;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_start_service(idevice_t device, diagnostics_relay_client_t * client, const char* label)
	{
	diagnostics_relay_error_t err = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	service_client_factory_start_service(device, DIAGNOSTICS_RELAY_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(diagnostics_relay_client_new), &err);
	return err;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_client_free(diagnostics_relay_client_t client)
	{
	if (!client)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	if (property_list_service_client_free(client->parent) != PROPERTY_LIST_SERVICE_E_SUCCESS) {
	return DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}
	free(client);
	return DIAGNOSTICS_RELAY_E_SUCCESS;
	}

	/**
	* Receives a plist from the service.
	*
	* @param client The diagnostics_relay client
	* @param plist The plist to store the received data
	*
	* @return DIAGNOSTICS_RELAY_E_SUCCESS on success,
	* DIAGNOSTICS_RELAY_E_INVALID_ARG when client or plist is NULL
	*/
	static diagnostics_relay_error_t diagnostics_relay_receive(diagnostics_relay_client_t client, plist_t *plist)
	{
	if (!client \|\| !plist \|\| (plist && *plist))
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	property_list_service_error_t err;

	err = property_list_service_receive_plist(client->parent, plist);
	if (err != PROPERTY_LIST_SERVICE_E_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	if (!*plist)
	ret = DIAGNOSTICS_RELAY_E_PLIST_ERROR;

	return ret;
	}

	/**
	* Sends a plist to the service.
	*
	* @note This function is low-level and should only be used if you need to send
	* a new type of message.
	*
	* @param client The diagnostics_relay client
	* @param plist The plist to send
	*
	* @return DIAGNOSTICS_RELAY_E_SUCCESS on success,
	* DIAGNOSTICS_RELAY_E_INVALID_ARG when client or plist is NULL
	*/
	static diagnostics_relay_error_t diagnostics_relay_send(diagnostics_relay_client_t client, plist_t plist)
	{
	if (!client \|\| !plist)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	property_list_service_error_t err;

	err = property_list_service_send_xml_plist(client->parent, plist);
	if (err != PROPERTY_LIST_SERVICE_E_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_goodbye(diagnostics_relay_client_t client)
	{
	if (!client)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict, "Request", plist_new_string("Goodbye"));

	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	debug_info("did not get goodbye response back");
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	plist_free(dict);
	dict = NULL;
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_sleep(diagnostics_relay_client_t client)
	{
	if (!client)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();

	plist_dict_set_item(dict,"Request", plist_new_string("Sleep"));
	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	plist_free(dict);
	return ret;
	}

	static diagnostics_relay_error_t internal_diagnostics_relay_action(diagnostics_relay_client_t client, const char* name, diagnostics_relay_action_t flags)
	{
	if (!client)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict,"Request", plist_new_string(name));

	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_WAIT_FOR_DISCONNECT) {
	plist_dict_set_item(dict, "WaitForDisconnect", plist_new_bool(1));
	}

	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_DISPLAY_PASS) {
	plist_dict_set_item(dict, "DisplayPass", plist_new_bool(1));
	}

	if (flags & DIAGNOSTICS_RELAY_ACTION_FLAG_DISPLAY_FAIL) {
	plist_dict_set_item(dict, "DisplayFail", plist_new_bool(1));
	}

	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	plist_free(dict);
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_restart(diagnostics_relay_client_t client, diagnostics_relay_action_t flags)
	{
	return internal_diagnostics_relay_action(client, "Restart", flags);
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_shutdown(diagnostics_relay_client_t client, diagnostics_relay_action_t flags)
	{
	return internal_diagnostics_relay_action(client, "Shutdown", flags);
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_request_diagnostics(diagnostics_relay_client_t client, const char* type, plist_t* diagnostics)
	{
	if (!client \|\| diagnostics == NULL)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict,"Request", plist_new_string(type));
	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;
	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	return ret;
	}

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	plist_free(dict);
	return ret;
	}

	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
	if (value_node) {
	*diagnostics = plist_copy(value_node);
	}

	plist_free(dict);
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_mobilegestalt(diagnostics_relay_client_t client, plist_t keys, plist_t* result)
	{
	if (!client \|\| plist_get_node_type(keys) != PLIST_ARRAY \|\| result == NULL)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict,"MobileGestaltKeys", plist_copy(keys));
	plist_dict_set_item(dict,"Request", plist_new_string("MobileGestalt"));
	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;
	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	return ret;
	}

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	plist_free(dict);
	return ret;
	}

	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
	if (value_node) {
	*result = plist_copy(value_node);
	}

	plist_free(dict);
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_ioregistry_entry(diagnostics_relay_client_t client, const char* entry_name, const char* entry_class, plist_t* result)
	{
	if (!client \|\| (entry_name == NULL && entry_class == NULL) \|\| result == NULL)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	if (entry_name)
	plist_dict_set_item(dict,"EntryName", plist_new_string(entry_name));
	if (entry_class)
	plist_dict_set_item(dict,"EntryClass", plist_new_string(entry_class));
	plist_dict_set_item(dict,"Request", plist_new_string("IORegistry"));
	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;
	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	return ret;
	}

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	plist_free(dict);
	return ret;
	}

	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
	if (value_node) {
	*result = plist_copy(value_node);
	}

	plist_free(dict);
	return ret;
	}

	LIBIMOBILEDEVICE_API diagnostics_relay_error_t diagnostics_relay_query_ioregistry_plane(diagnostics_relay_client_t client, const char* plane, plist_t* result)
	{
	if (!client \|\| plane == NULL \|\| result == NULL)
	return DIAGNOSTICS_RELAY_E_INVALID_ARG;

	diagnostics_relay_error_t ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict,"CurrentPlane", plist_new_string(plane));
	plist_dict_set_item(dict,"Request", plist_new_string("IORegistry"));
	ret = diagnostics_relay_send(client, dict);
	plist_free(dict);
	dict = NULL;

	ret = diagnostics_relay_receive(client, &dict);
	if (!dict) {
	return DIAGNOSTICS_RELAY_E_PLIST_ERROR;
	}

	int check = diagnostics_relay_check_result(dict);
	if (check == RESULT_SUCCESS) {
	ret = DIAGNOSTICS_RELAY_E_SUCCESS;
	} else if (check == RESULT_UNKNOWN_REQUEST) {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_REQUEST;
	} else {
	ret = DIAGNOSTICS_RELAY_E_UNKNOWN_ERROR;
	}

	if (ret != DIAGNOSTICS_RELAY_E_SUCCESS) {
	plist_free(dict);
	return ret;
	}

	plist_t value_node = plist_dict_get_item(dict, "Diagnostics");
	if (value_node) {
	*result = plist_copy(value_node);
	}

	plist_free(dict);
	return ret;
	}