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

 /*
  * mobile_image_mounter.c
  * com.apple.mobile.mobile_image_mounter service implementation.
  *
  * Copyright (c) 2010-2019 Nikias Bassen, 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 <unistd.h>
 #include <plist/plist.h>

 #include "mobile_image_mounter.h"
 #include "property_list_service.h"
 #include "common/debug.h"

 /**
  * Locks a mobile_image_mounter client, used for thread safety.
  *
  * @param client mobile_image_mounter client to lock
  */
 static void mobile_image_mounter_lock(mobile_image_mounter_client_t client)
 {
 	mutex_lock(&client->mutex);
 }

 /**
  * Unlocks a mobile_image_mounter client, used for thread safety.
  *
  * @param client mobile_image_mounter client to unlock
  */
 static void mobile_image_mounter_unlock(mobile_image_mounter_client_t client)
 {
 	mutex_unlock(&client->mutex);
 }

 /**
  * Convert a property_list_service_error_t value to a
  * mobile_image_mounter_error_t value.
  * Used internally to get correct error codes.
  *
  * @param err A property_list_service_error_t error code
  *
  * @return A matching mobile_image_mounter_error_t error code,
  *     MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR otherwise.
  */
 static mobile_image_mounter_error_t mobile_image_mounter_error(property_list_service_error_t err)
 {
 	switch (err) {
 		case PROPERTY_LIST_SERVICE_E_SUCCESS:
 			return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
 		case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
 			return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
 		case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
 			return MOBILE_IMAGE_MOUNTER_E_PLIST_ERROR;
 		case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
 			return MOBILE_IMAGE_MOUNTER_E_CONN_FAILED;
 		default:
 			break;
 	}
 	return MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
 }

 mobile_image_mounter_error_t mobile_image_mounter_new(idevice_t device, lockdownd_service_descriptor_t service, mobile_image_mounter_client_t *client)
 {
 	property_list_service_client_t plistclient = NULL;
 	mobile_image_mounter_error_t err = mobile_image_mounter_error(property_list_service_client_new(device, service, &plistclient));
 	if (err != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		return err;
 	}

 	mobile_image_mounter_client_t client_loc = (mobile_image_mounter_client_t) malloc(sizeof(struct mobile_image_mounter_client_private));
 	client_loc->parent = plistclient;

 	mutex_init(&client_loc->mutex);

 	*client = client_loc;
 	return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
 }

 mobile_image_mounter_error_t mobile_image_mounter_start_service(idevice_t device, mobile_image_mounter_client_t * client, const char* label)
 {
 	mobile_image_mounter_error_t err = MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
 	service_client_factory_start_service(device, MOBILE_IMAGE_MOUNTER_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(mobile_image_mounter_new), &err);
 	return err;
 }

 mobile_image_mounter_error_t mobile_image_mounter_free(mobile_image_mounter_client_t client)
 {
 	if (!client)
 		return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;

 	property_list_service_client_free(client->parent);
 	client->parent = NULL;
 	mutex_destroy(&client->mutex);
 	free(client);

 	return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
 }

 mobile_image_mounter_error_t mobile_image_mounter_lookup_image(mobile_image_mounter_client_t client, const char *image_type, plist_t *result)
 {
 	if (!client || !image_type || !result) {
 		return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
 	}
 	mobile_image_mounter_lock(client);

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict,"Command", plist_new_string("LookupImage"));
 	plist_dict_set_item(dict,"ImageType", plist_new_string(image_type));

 	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
 	plist_free(dict);

 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error sending XML plist to device!", __func__);
 		goto leave_unlock;
 	}

 	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error receiving response from device!", __func__);
 	}

 leave_unlock:
 	mobile_image_mounter_unlock(client);
 	return res;
 }

 static mobile_image_mounter_error_t process_result(plist_t result, const char *expected_status)
 {
 	mobile_image_mounter_error_t res = MOBILE_IMAGE_MOUNTER_E_COMMAND_FAILED;
 	char* strval = NULL;
 	plist_t node;

 	node = plist_dict_get_item(result, "Error");
 	if (node && plist_get_node_type(node) == PLIST_STRING) {
 		plist_get_string_val(node, &strval);
 	}
 	if (strval) {
 		if (!strcmp(strval, "DeviceLocked")) {
 			debug_info("Device is locked, can't mount");
 			res = MOBILE_IMAGE_MOUNTER_E_DEVICE_LOCKED;
 		} else {
 			debug_info("Unhandled error '%s' received", strval);
 		}
 		free(strval);
 		return res;
 	}

 	node = plist_dict_get_item(result, "Status");
 	if (node && plist_get_node_type(node) == PLIST_STRING) {
 		plist_get_string_val(node, &strval);
 	}
 	if (!strval) {
 		debug_info("Error: Unexpected response received!");
 	} else if (strcmp(strval, expected_status) == 0) {
 		res = MOBILE_IMAGE_MOUNTER_E_SUCCESS;
 	} else {
 		debug_info("Error: didn't get %s but %s", expected_status, strval);
 	}
 	free(strval);

 	return res;
 }

 mobile_image_mounter_error_t mobile_image_mounter_upload_image(mobile_image_mounter_client_t client, const char *image_type, size_t image_size, const char *signature, uint16_t signature_size, mobile_image_mounter_upload_cb_t upload_cb, void* userdata)
 {
 	if (!client || !image_type || (image_size == 0) || !upload_cb) {
 		return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
 	}
 	mobile_image_mounter_lock(client);
 	plist_t result = NULL;

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict, "Command", plist_new_string("ReceiveBytes"));
 	if (signature && signature_size != 0)
 		plist_dict_set_item(dict, "ImageSignature", plist_new_data(signature, signature_size));
 	plist_dict_set_item(dict, "ImageSize", plist_new_uint(image_size));
 	plist_dict_set_item(dict, "ImageType", plist_new_string(image_type));

 	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
 	plist_free(dict);

 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("Error sending XML plist to device!");
 		goto leave_unlock;
 	}

 	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &result));
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("Error receiving response from device!");
 		goto leave_unlock;
 	}
 	res = process_result(result, "ReceiveBytesAck");
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		goto leave_unlock;
 	}

 	size_t tx = 0;
 	size_t bufsize = 65536;
 	unsigned char *buf = (unsigned char*)malloc(bufsize);
 	if (!buf) {
 		debug_info("Out of memory");
 		res = MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
 		goto leave_unlock;
 	}
 	debug_info("uploading image (%d bytes)", (int)image_size);
 	while (tx < image_size) {
 		size_t remaining = image_size - tx;
 		size_t amount = (remaining < bufsize) ? remaining : bufsize;
 		ssize_t r = upload_cb(buf, amount, userdata);
 		if (r < 0) {
 			debug_info("upload_cb returned %d", (int)r);
 			break;
 		}
 		uint32_t sent = 0;
 		if (service_send(client->parent->parent, (const char*)buf, (uint32_t)r, &sent) != SERVICE_E_SUCCESS) {
 			debug_info("service_send failed");
 			break;
 		}
 		tx += r;
 	}
 	free(buf);
 	if (tx < image_size) {
 		debug_info("Error: failed to upload image");
 		goto leave_unlock;
 	}
 	debug_info("image uploaded");

 	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &result));
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("Error receiving response from device!");
 		goto leave_unlock;
 	}
 	res = process_result(result, "Complete");

 leave_unlock:
 	mobile_image_mounter_unlock(client);
 	if (result)
 		plist_free(result);
 	return res;

 }

 mobile_image_mounter_error_t mobile_image_mounter_mount_image(mobile_image_mounter_client_t client, const char *image_path, const char *signature, uint16_t signature_size, const char *image_type, plist_t *result)
 {
 	if (!client || !image_path || !image_type || !result) {
 		return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
 	}
 	mobile_image_mounter_lock(client);

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict, "Command", plist_new_string("MountImage"));
 	plist_dict_set_item(dict, "ImagePath", plist_new_string(image_path));
 	if (signature && signature_size != 0)
 		plist_dict_set_item(dict, "ImageSignature", plist_new_data(signature, signature_size));
 	plist_dict_set_item(dict, "ImageType", plist_new_string(image_type));

 	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
 	plist_free(dict);

 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error sending XML plist to device!", __func__);
 		goto leave_unlock;
 	}

 	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error receiving response from device!", __func__);
 	}

 leave_unlock:
 	mobile_image_mounter_unlock(client);
 	return res;
 }

 mobile_image_mounter_error_t mobile_image_mounter_hangup(mobile_image_mounter_client_t client)
 {
 	if (!client) {
 		return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
 	}
 	mobile_image_mounter_lock(client);

 	plist_t dict = plist_new_dict();
 	plist_dict_set_item(dict, "Command", plist_new_string("Hangup"));

 	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
 	plist_free(dict);

 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error sending XML plist to device!", __func__);
 		goto leave_unlock;
 	}

 	dict = NULL;
 	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &dict));
 	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
 		debug_info("%s: Error receiving response from device!", __func__);
 	}
 	if (dict) {
 		debug_plist(dict);
 		plist_free(dict);
 	}

 leave_unlock:
 	mobile_image_mounter_unlock(client);
 	return res;
 }
	/*
	* mobile_image_mounter.c
	* com.apple.mobile.mobile_image_mounter service implementation.
	*
	* Copyright (c) 2010-2019 Nikias Bassen, 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 <unistd.h>
	#include <plist/plist.h>

	#include "mobile_image_mounter.h"
	#include "property_list_service.h"
	#include "common/debug.h"

	/**
	* Locks a mobile_image_mounter client, used for thread safety.
	*
	* @param client mobile_image_mounter client to lock
	*/
	static void mobile_image_mounter_lock(mobile_image_mounter_client_t client)
	{
	mutex_lock(&client->mutex);
	}

	/**
	* Unlocks a mobile_image_mounter client, used for thread safety.
	*
	* @param client mobile_image_mounter client to unlock
	*/
	static void mobile_image_mounter_unlock(mobile_image_mounter_client_t client)
	{
	mutex_unlock(&client->mutex);
	}

	/**
	* Convert a property_list_service_error_t value to a
	* mobile_image_mounter_error_t value.
	* Used internally to get correct error codes.
	*
	* @param err A property_list_service_error_t error code
	*
	* @return A matching mobile_image_mounter_error_t error code,
	* MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR otherwise.
	*/
	static mobile_image_mounter_error_t mobile_image_mounter_error(property_list_service_error_t err)
	{
	switch (err) {
	case PROPERTY_LIST_SERVICE_E_SUCCESS:
	return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
	case PROPERTY_LIST_SERVICE_E_INVALID_ARG:
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
	case PROPERTY_LIST_SERVICE_E_PLIST_ERROR:
	return MOBILE_IMAGE_MOUNTER_E_PLIST_ERROR;
	case PROPERTY_LIST_SERVICE_E_MUX_ERROR:
	return MOBILE_IMAGE_MOUNTER_E_CONN_FAILED;
	default:
	break;
	}
	return MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
	}

	mobile_image_mounter_error_t mobile_image_mounter_new(idevice_t device, lockdownd_service_descriptor_t service, mobile_image_mounter_client_t *client)
	{
	property_list_service_client_t plistclient = NULL;
	mobile_image_mounter_error_t err = mobile_image_mounter_error(property_list_service_client_new(device, service, &plistclient));
	if (err != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	return err;
	}

	mobile_image_mounter_client_t client_loc = (mobile_image_mounter_client_t) malloc(sizeof(struct mobile_image_mounter_client_private));
	client_loc->parent = plistclient;

	mutex_init(&client_loc->mutex);

	*client = client_loc;
	return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
	}

	mobile_image_mounter_error_t mobile_image_mounter_start_service(idevice_t device, mobile_image_mounter_client_t * client, const char* label)
	{
	mobile_image_mounter_error_t err = MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
	service_client_factory_start_service(device, MOBILE_IMAGE_MOUNTER_SERVICE_NAME, (void**)client, label, SERVICE_CONSTRUCTOR(mobile_image_mounter_new), &err);
	return err;
	}

	mobile_image_mounter_error_t mobile_image_mounter_free(mobile_image_mounter_client_t client)
	{
	if (!client)
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;

	property_list_service_client_free(client->parent);
	client->parent = NULL;
	mutex_destroy(&client->mutex);
	free(client);

	return MOBILE_IMAGE_MOUNTER_E_SUCCESS;
	}

	mobile_image_mounter_error_t mobile_image_mounter_lookup_image(mobile_image_mounter_client_t client, const char image_type, plist_t result)
	{
	if (!client \|\| !image_type \|\| !result) {
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
	}
	mobile_image_mounter_lock(client);

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict,"Command", plist_new_string("LookupImage"));
	plist_dict_set_item(dict,"ImageType", plist_new_string(image_type));

	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
	plist_free(dict);

	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error sending XML plist to device!", __func__);
	goto leave_unlock;
	}

	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error receiving response from device!", __func__);
	}

	leave_unlock:
	mobile_image_mounter_unlock(client);
	return res;
	}

	static mobile_image_mounter_error_t process_result(plist_t result, const char *expected_status)
	{
	mobile_image_mounter_error_t res = MOBILE_IMAGE_MOUNTER_E_COMMAND_FAILED;
	char* strval = NULL;
	plist_t node;

	node = plist_dict_get_item(result, "Error");
	if (node && plist_get_node_type(node) == PLIST_STRING) {
	plist_get_string_val(node, &strval);
	}
	if (strval) {
	if (!strcmp(strval, "DeviceLocked")) {
	debug_info("Device is locked, can't mount");
	res = MOBILE_IMAGE_MOUNTER_E_DEVICE_LOCKED;
	} else {
	debug_info("Unhandled error '%s' received", strval);
	}
	free(strval);
	return res;
	}

	node = plist_dict_get_item(result, "Status");
	if (node && plist_get_node_type(node) == PLIST_STRING) {
	plist_get_string_val(node, &strval);
	}
	if (!strval) {
	debug_info("Error: Unexpected response received!");
	} else if (strcmp(strval, expected_status) == 0) {
	res = MOBILE_IMAGE_MOUNTER_E_SUCCESS;
	} else {
	debug_info("Error: didn't get %s but %s", expected_status, strval);
	}
	free(strval);

	return res;
	}

	mobile_image_mounter_error_t mobile_image_mounter_upload_image(mobile_image_mounter_client_t client, const char image_type, size_t image_size, const char signature, uint16_t signature_size, mobile_image_mounter_upload_cb_t upload_cb, void* userdata)
	{
	if (!client \|\| !image_type \|\| (image_size == 0) \|\| !upload_cb) {
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
	}
	mobile_image_mounter_lock(client);
	plist_t result = NULL;

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict, "Command", plist_new_string("ReceiveBytes"));
	if (signature && signature_size != 0)
	plist_dict_set_item(dict, "ImageSignature", plist_new_data(signature, signature_size));
	plist_dict_set_item(dict, "ImageSize", plist_new_uint(image_size));
	plist_dict_set_item(dict, "ImageType", plist_new_string(image_type));

	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
	plist_free(dict);

	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("Error sending XML plist to device!");
	goto leave_unlock;
	}

	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &result));
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("Error receiving response from device!");
	goto leave_unlock;
	}
	res = process_result(result, "ReceiveBytesAck");
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	goto leave_unlock;
	}

	size_t tx = 0;
	size_t bufsize = 65536;
	unsigned char buf = (unsigned char)malloc(bufsize);
	if (!buf) {
	debug_info("Out of memory");
	res = MOBILE_IMAGE_MOUNTER_E_UNKNOWN_ERROR;
	goto leave_unlock;
	}
	debug_info("uploading image (%d bytes)", (int)image_size);
	while (tx < image_size) {
	size_t remaining = image_size - tx;
	size_t amount = (remaining < bufsize) ? remaining : bufsize;
	ssize_t r = upload_cb(buf, amount, userdata);
	if (r < 0) {
	debug_info("upload_cb returned %d", (int)r);
	break;
	}
	uint32_t sent = 0;
	if (service_send(client->parent->parent, (const char*)buf, (uint32_t)r, &sent) != SERVICE_E_SUCCESS) {
	debug_info("service_send failed");
	break;
	}
	tx += r;
	}
	free(buf);
	if (tx < image_size) {
	debug_info("Error: failed to upload image");
	goto leave_unlock;
	}
	debug_info("image uploaded");

	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &result));
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("Error receiving response from device!");
	goto leave_unlock;
	}
	res = process_result(result, "Complete");

	leave_unlock:
	mobile_image_mounter_unlock(client);
	if (result)
	plist_free(result);
	return res;

	}

	mobile_image_mounter_error_t mobile_image_mounter_mount_image(mobile_image_mounter_client_t client, const char image_path, const char signature, uint16_t signature_size, const char image_type, plist_t result)
	{
	if (!client \|\| !image_path \|\| !image_type \|\| !result) {
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
	}
	mobile_image_mounter_lock(client);

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict, "Command", plist_new_string("MountImage"));
	plist_dict_set_item(dict, "ImagePath", plist_new_string(image_path));
	if (signature && signature_size != 0)
	plist_dict_set_item(dict, "ImageSignature", plist_new_data(signature, signature_size));
	plist_dict_set_item(dict, "ImageType", plist_new_string(image_type));

	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
	plist_free(dict);

	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error sending XML plist to device!", __func__);
	goto leave_unlock;
	}

	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, result));
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error receiving response from device!", __func__);
	}

	leave_unlock:
	mobile_image_mounter_unlock(client);
	return res;
	}

	mobile_image_mounter_error_t mobile_image_mounter_hangup(mobile_image_mounter_client_t client)
	{
	if (!client) {
	return MOBILE_IMAGE_MOUNTER_E_INVALID_ARG;
	}
	mobile_image_mounter_lock(client);

	plist_t dict = plist_new_dict();
	plist_dict_set_item(dict, "Command", plist_new_string("Hangup"));

	mobile_image_mounter_error_t res = mobile_image_mounter_error(property_list_service_send_xml_plist(client->parent, dict));
	plist_free(dict);

	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error sending XML plist to device!", __func__);
	goto leave_unlock;
	}

	dict = NULL;
	res = mobile_image_mounter_error(property_list_service_receive_plist(client->parent, &dict));
	if (res != MOBILE_IMAGE_MOUNTER_E_SUCCESS) {
	debug_info("%s: Error receiving response from device!", __func__);
	}
	if (dict) {
	debug_plist(dict);
	plist_free(dict);
	}

	leave_unlock:
	mobile_image_mounter_unlock(client);
	return res;
	}