MobileDevice Library

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MobileDevice Library is used by iTunes to transfer data between iPhone and computer over the USB connection.

PC Windows : iTunesMobileDevice.dll

  • Location : Location is stored in iTunesMobileDeviceDLL registry value under HKLM\SOFTWARE\Apple Inc.\Apple Mobile Device Support\Shared key. Usually - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\iTunesMobileDevice.dll.
  • Supporting CoreFoundation.dll (used for CFStringRef, CFPropertyListRef management) is located in the same dir (when using iTunes prior 9.0).
  • For iTunes 9.0 location of CoreFoundation.dll is stored in InstallDir registry value under HKLM\SOFTWARE\Apple Inc.\Apple Application Support key, usually C:\Program Files\Common Files\Apple\Apple Application Support\. CoreFoundation.dll from Mobile Device Support\bin should not be used.

Mac OSX : MobileDevice.framework

  • Location : /System/Library/PrivateFrameworks/MobileDevice.framework
  • Export command : "nm /System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice"

MobileDevice Header (mobiledevice.h)

Reverse engineered C header for MobileDevice Library.

/* ----------------------------------------------------------------------------
 *   MobileDevice.h - interface to MobileDevice.framework 
 * ------------------------------------------------------------------------- */
#pragma once


#ifdef __cplusplus
extern "C" {
#ifndef __GCC__
#pragma pack
#define __PACK
#define __PACK __attribute__((__packed__))

#if defined(WIN32)
#define __DLLIMPORT [DllImport("iTunesMobileDevice.dll")]
	using namespace System::Runtime::InteropServices;
#include <CoreFoundation.h>
	typedef unsigned int mach_error_t;
#elif defined(__APPLE__)
#define __DLLIMPORT
#include <CoreFoundation/CoreFoundation.h>
#include <mach/error.h>
	/* Error codes */
#define MDERR_APPLE_MOBILE  (err_system(0x3a))
#define MDERR_IPHONE        (err_sub(0))
	/* Apple Mobile (AM*) errors */
#define MDERR_OK                ERR_SUCCESS
#define MDERR_SYSCALL           (ERR_MOBILE_DEVICE | 0x01)
	/* Apple File Connection (AFC*) errors */
	/* USBMux errors */
#define MDERR_USBMUX_ARG_NULL   0x16
#define MDERR_USBMUX_FAILED     0xffffffff
	/* Messages passed to device notification callbacks: passed as part of
	 * am_device_notification_callback_info. */
#define AMD_IPHONE_PRODUCT_ID   0x1290
	//#define AMD_IPHONE_SERIAL       ""
	/* Services, found in /System/Library/Lockdown/Services.plist */
#define AMSVC_AFC                   CFSTR("")
#define AMSVC_BACKUP                CFSTR("")
#define AMSVC_PURPLE_TEST           CFSTR("")
#define AMSVC_SYNC                  CFSTR("")
#define AMSVC_SCREENSHOT            CFSTR("")
#define AMSVC_SYSLOG_RELAY          CFSTR("")
	typedef unsigned int afc_error_t;
	typedef unsigned int usbmux_error_t;
	struct am_recovery_device;
	struct am_device_notification_callback_info {
		struct am_device *dev;  /* 0    device */ 
		unsigned int msg;       /* 4    one of ADNCI_MSG_* */
                struct am_device_notification* subscription; 
	} __PACK;
	/* The type of the device restore notification callback functions.
	 * TODO: change to correct type. */
	typedef void (*am_restore_device_notification_callback)(struct am_recovery_device *);
	/* This is a CoreFoundation object of class AMRecoveryModeDevice. */
	struct am_recovery_device {
		unsigned char unknown0[8];                          /* 0 */
		am_restore_device_notification_callback callback;   /* 8 */
		void *user_info;                                    /* 12 */
		unsigned char unknown1[12];                         /* 16 */
		unsigned int readwrite_pipe;                        /* 28 */
		unsigned char read_pipe;                            /* 32 */
		unsigned char write_ctrl_pipe;                      /* 33 */
		unsigned char read_unknown_pipe;                    /* 34 */
		unsigned char write_file_pipe;                      /* 35 */
		unsigned char write_input_pipe;                     /* 36 */
	} __PACK;
	/* A CoreFoundation object of class AMRestoreModeDevice. */
	struct am_restore_device {
		unsigned char unknown[32];
		int port;
	} __PACK;
	/* The type of the device notification callback function. */
	typedef void(*am_device_notification_callback)(struct am_device_notification_callback_info *, int cookie);
	/* The type of the _AMDDeviceAttached function.
	 * TODO: change to correct type. */
	typedef void *amd_device_attached_callback;
	/* The type of the device restore notification callback functions.
	 * TODO: change to correct type. */
	typedef void (*am_restore_device_notification_callback)(struct am_recovery_device *);

	/* Structure that contains internal data used by AMDevice... functions. Never try 
         * to access its members directly! Use AMDeviceCopyDeviceIdentifier, 
         * AMDeviceGetConnectionID, AMDeviceRetain, AMDeviceRelease instead. */
	struct am_device {
		unsigned char unknown0[16]; /* 0 - zero */
		unsigned int device_id;     /* 16 */
		unsigned int product_id;    /* 20 - set to AMD_IPHONE_PRODUCT_ID */
		char *serial;               /* 24 - set to UDID, Unique Device Identifier */
		unsigned int unknown1;      /* 28 */
		unsigned int unknown2;      /* 32 - reference counter, increased by AMDeviceRetain, decreased by AMDeviceRelease*/
		unsigned int lockdown_conn; /* 36 */
		unsigned char unknown3[8];  /* 40 */
#if (__ITUNES_VER > 740)
		unsigned int unknown4;      /* 48 - used to store CriticalSection Handle*/
#if (__ITUNES_VER >= 800)
		unsigned char unknown5[24];  /* 52 */
	} __PACK;
	struct am_device_notification {
		unsigned int unknown0;                      /* 0 */
		unsigned int unknown1;                      /* 4 */
		unsigned int unknown2;                      /* 8 */
		am_device_notification_callback callback;   /* 12 */ 
		unsigned int cookie;                      /* 16 */
	} __PACK;
	struct afc_connection {
		unsigned int handle;            /* 0 */
		unsigned int unknown0;          /* 4 */
		unsigned char unknown1;         /* 8 */
		unsigned char padding[3];       /* 9 */
		unsigned int unknown2;          /* 12 */
		unsigned int unknown3;          /* 16 */
		unsigned int unknown4;          /* 20 */
		unsigned int fs_block_size;     /* 24 */
		unsigned int sock_block_size;   /* 28: always 0x3c */
		unsigned int io_timeout;        /* 32: from AFCConnectionOpen, usu. 0 */
		void *afc_lock;                 /* 36 */
		unsigned int context;           /* 40 */
	} __PACK;

	struct afc_device_info {
		unsigned char unknown[12];  /* 0 */
	} __PACK;

	struct afc_directory {
		unsigned char unknown[0];   /* size unknown */
	} __PACK;

	struct afc_dictionary {
		unsigned char unknown[0];   /* size unknown */
	} __PACK;
	typedef unsigned long long afc_file_ref;
	struct usbmux_listener_1 {                  /* offset   value in iTunes */
		unsigned int unknown0;                  /* 0        1 */
		unsigned char *unknown1;                /* 4        ptr, maybe device? */
		amd_device_attached_callback callback;  /* 8        _AMDDeviceAttached */
		unsigned int unknown3;                  /* 12 */
		unsigned int unknown4;                  /* 16 */
		unsigned int unknown5;                  /* 20 */
	} __PACK;
	struct usbmux_listener_2 {
		unsigned char unknown0[4144];
	} __PACK;
	struct am_bootloader_control_packet {
		unsigned char opcode;       /* 0 */
		unsigned char length;       /* 1 */
		unsigned char magic[2];     /* 2: 0x34, 0x12 */
		unsigned char payload[0];   /* 4 */
	} __PACK;
	/* ----------------------------------------------------------------------------
	 *   Public routines
	 * ------------------------------------------------------------------------- */
	/*  Registers a notification with the current run loop. The callback gets
	 *  copied into the notification struct, as well as being registered with the
	 *  current run loop. Cookie gets copied into cookie in the same.
	 *  (Cookie is a user info parameter that gets passed as an arg to
	 *  the callback) unused0 and unused1 are both 0 when iTunes calls this.
	 *  Never try to acces directly or copy contents of dev and subscription fields 
	 *  in am_device_notification_callback_info. Treat them as abstract handles. 
	 *  When done with connection use AMDeviceRelease to free resources allocated for am_device.
	 *  Returns:
	 *      MDERR_OK            if successful
	 *      MDERR_SYSCALL       if CFRunLoopAddSource() failed
	 *      MDERR_OUT_OF_MEMORY if we ran out of memory
	__DLLIMPORT mach_error_t AMDeviceNotificationSubscribe(am_device_notification_callback callback, 
								unsigned int unused0, unsigned int unused1, 
								unsigned int cookie, 
								struct am_device_notification **subscription);

        /* Unregisters notifications. Buggy (iTunes 8.2): if you subscribe, unsubscribe and subscribe again, arriving 
           notifications will contain cookie and subscription from 1st call to subscribe, not the 2nd one. iTunes 
           calls this function only once on exit.
	__DLLIMPORT mach_error_t AMDeviceNotificationUnsubscribe(am_device_notification* subscription);

	/*  Returns device_id field of am_device structure
	__DLLIMPORT unsigned int AMDeviceGetConnectionID(struct am_device *device);

	/*  Returns serial field of am_device structure
	__DLLIMPORT CFStringRef AMDeviceCopyDeviceIdentifier(struct am_device *device);

	/*  Connects to the iPhone. Pass in the am_device structure that the
	 *  notification callback will give to you.
	 *  Returns:
	 *      MDERR_OK                if successfully connected
	 *      MDERR_SYSCALL           if setsockopt() failed
	 *      MDERR_QUERY_FAILED      if the daemon query failed
	 *      MDERR_INVALID_ARGUMENT  if USBMuxConnectByPort returned 0xffffffff
	__DLLIMPORT mach_error_t AMDeviceConnect(struct am_device *device);
	/*  Calls PairingRecordPath() on the given device, than tests whether the path
	 *  which that function returns exists. During the initial connect, the path
	 *  returned by that function is '/', and so this returns 1.
	 *  Returns:
	 *      0   if the path did not exist
	 *      1   if it did
	__DLLIMPORT mach_error_t AMDeviceIsPaired(struct am_device *device);
	__DLLIMPORT mach_error_t AMDevicePair(struct am_device *device);
	/*  iTunes calls this function immediately after testing whether the device is
	 *  paired. It creates a pairing file and establishes a Lockdown connection.
	 *  Returns:
	 *      MDERR_OK                if successful
	 *      MDERR_INVALID_ARGUMENT  if the supplied device is null
	 *      MDERR_DICT_NOT_LOADED   if the load_dict() call failed
	__DLLIMPORT mach_error_t AMDeviceValidatePairing(struct am_device *device);
	/*  Creates a Lockdown session and adjusts the device structure appropriately
	 *  to indicate that the session has been started. iTunes calls this function
	 *  after validating pairing.
	 *  Returns:
	 *      MDERR_OK                if successful
	 *      MDERR_INVALID_ARGUMENT  if the Lockdown conn has not been established
	 *      MDERR_DICT_NOT_LOADED   if the load_dict() call failed
	__DLLIMPORT mach_error_t AMDeviceStartSession(struct am_device *device);

	/* Reads various device settings. One of domain or cfstring arguments should be NULL.
         * Possible values for cfstring:
	 * ActivationState
	 * ActivationStateAcknowledged
	 * BasebandBootloaderVersion
	 * BasebandVersion
	 * BluetoothAddress
	 * BuildVersion
	 * DeviceCertificate
	 * DeviceClass
	 * DeviceName
	 * DevicePublicKey
	 * FirmwareVersion
	 * HostAttached
	 * IntegratedCircuitCardIdentity
	 * InternationalMobileEquipmentIdentity
	 * InternationalMobileSubscriberIdentity
	 * ModelNumber
	 * PhoneNumber
	 * ProductType
	 * ProductVersion
	 * ProtocolVersion
	 * RegionInfo
	 * SBLockdownEverRegisteredKey
	 * SIMStatus
	 * SerialNumber
	 * SomebodySetTimeZone
	 * TimeIntervalSince1970
	 * TimeZone
	 * TimeZoneOffsetFromUTC
	 * TrustedHostAttached
	 * UniqueDeviceID
	 * Uses24HourClock
	 * WiFiAddress
	 * iTunesHasConnected
         * Possible values for domain:
	__DLLIMPORT CFStringRef AMDeviceCopyValue(struct am_device *device, CFStringRef domain, CFStringRef cfstring);
	/* Starts a service and returns a socket file descriptor that can be used in order to further
	 * access the service. You should stop the session and disconnect before using
	 * the service. iTunes calls this function after starting a session. It starts 
	 * the service and the SSL connection. service_name should be one of the AMSVC_*
	 * constants.
	 * Returns:
	 *      MDERR_OK                if successful
	 *      MDERR_SYSCALL           if the setsockopt() call failed
	 *      MDERR_INVALID_ARGUMENT  if the Lockdown conn has not been established
	__DLLIMPORT mach_error_t AMDeviceStartService(struct am_device *device, CFStringRef 
									  service_name, int *socket_fd);
	/* Stops a session. You should do this before accessing services.
	 * Returns:
	 *      MDERR_OK                if successful
	 *      MDERR_INVALID_ARGUMENT  if the Lockdown conn has not been established
	__DLLIMPORT mach_error_t AMDeviceStopSession(struct am_device *device);
	/* Decrements reference counter and, if nothing left, releases resources hold 
	 * by connection, invalidates  pointer to device
	__DLLIMPORT void AMDeviceRelease(struct am_device *device);

	/* Increments reference counter
	__DLLIMPORT void AMDeviceRetain(struct am_device *device);

	/* Opens an Apple File Connection. You must start the appropriate service
	 * first with AMDeviceStartService(). In iTunes, io_timeout is 0.
	 * Returns:
	 *      MDERR_OK                if successful
	 *      MDERR_AFC_OUT_OF_MEMORY if malloc() failed
	__DLLIMPORT afc_error_t AFCConnectionOpen(int socket_fd, unsigned int io_timeout,
								  struct afc_connection **conn);
	/* Pass in a pointer to an afc_dictionary structure. It will be filled. You can
	 * iterate it using AFCKeyValueRead. When done use AFCKeyValueClose. Possible keys:
	 * FSFreeBytes - free bytes on system device for afc2, user device for afc
	 * FSBlockSize - filesystem block size
	 * FSTotalBytes - size of device
	 * Model - iPhone1,1 etc.

	__DLLIMPORT afc_error_t AFCDeviceInfoOpen(struct afc_connection *conn, struct
								  afc_dictionary **info);
	/* Turns debug mode on if the environment variable AFCDEBUG is set to a numeric
	 * value, or if the file '/AFCDEBUG' is present and contains a value. */
#if defined(__APPLE__)
	void AFCPlatformInit();
	/* Opens a directory on the iPhone. Pass in a pointer in dir to be filled in.
	 * Note that this normally only accesses the iTunes sandbox/partition as the
	 * root, which is /var/root/Media. Pathnames are specified with '/' delimiters
	 * as in Unix style. Use UTF-8 to specify non-ASCII symbols in path.
	 * Returns:
	 *      MDERR_OK                if successful
	__DLLIMPORT afc_error_t AFCDirectoryOpen(struct afc_connection *conn, char *path, struct
								 afc_directory **dir);
	/* Acquires the next entry in a directory previously opened with
	 * AFCDirectoryOpen(). When dirent is filled with a NULL value, then the end
	 * of the directory has been reached. '.' and '..' will be returned as the
	 * first two entries in each directory except the root; you may want to skip
	 * over them.
	 * Returns:
	 *      MDERR_OK                if successful, even if no entries remain
	__DLLIMPORT afc_error_t AFCDirectoryRead(struct afc_connection *conn, struct afc_directory *dir,
								 char **dirent);
	__DLLIMPORT afc_error_t AFCDirectoryClose(afc_connection *conn, struct afc_directory *dir);
	__DLLIMPORT afc_error_t AFCDirectoryCreate(afc_connection *conn, char *dirname);
	__DLLIMPORT afc_error_t AFCRemovePath(afc_connection *conn, char *dirname);
	__DLLIMPORT afc_error_t AFCRenamePath(afc_connection *conn, char *oldpath, char *newpath);

	/* Creates symbolic or hard link
         * linktype - int64: 1 means hard link, 2 - soft (symbolic) link
         * target - absolute or relative path to link target
         * linkname - absolute path where to create new link
	__DLLIMPORT afc_error_t AFCLinkPath(struct afc_connection *conn, long long int linktype, const char *target, 
								                              const char *linkname);

	/* Opens file for reading or writing without locking it in any way. afc_file_ref should not be shared between threads - 
         * opening file in one thread and closing it in another will lead to possible crash.
	 * path - UTF-8 encoded absolute path to file
	 * mode 2 = read, mode 3 = write; unknown = 0 
	 * ref - receives file handle
	__DLLIMPORT afc_error_t AFCFileRefOpen(struct afc_connection *conn, char *path, unsigned
							   long long int mode, afc_file_ref *ref);
	/* Reads specified amount (len) of bytes from file into buf. Puts actual count of read bytes into len on return
	__DLLIMPORT afc_error_t AFCFileRefRead(struct afc_connection *conn, afc_file_ref ref,
							   void *buf, unsigned int *len);
	/* Writes specified amount (len) of bytes from buf into file.
	__DLLIMPORT afc_error_t AFCFileRefWrite(struct afc_connection *conn, afc_file_ref ref,
								void *buf, unsigned int len);
	/* Moves the file pointer to a specified location.
	 * offset - Number of bytes from origin (int64)
	 * origin - 0 = from beginning, 1 = from current position, 2 = from end
	__DLLIMPORT afc_error_t AFCFileRefSeek(struct afc_connection *conn, afc_file_ref ref,
							   unsigned long long offset, int origin, int unused);

	/* Gets the current position of a file pointer into offset argument.
	__DLLIMPORT afc_error_t AFCFileRefTell(struct afc_connection *conn, afc_file_ref ref,
							   unsigned long long* offset);

	__DLLIMPORT afc_error_t AFCFileRefLock(struct afc_connection *conn, afc_file_ref ref);
	__DLLIMPORT afc_error_t AFCFileRefUnlock(struct afc_connection *conn, afc_file_ref ref);
	__DLLIMPORT afc_error_t AFCFileRefClose(struct afc_connection *conn, afc_file_ref ref);

	/* Opens dictionary describing specified file or directory (iTunes below 8.2 allowed using AFCGetFileInfo
	   to get the same information)
	__DLLIMPORT afc_error_t AFCFileInfoOpen(struct afc_connection *conn, char *path, struct
								afc_dictionary **info);

	/* Reads next entry from dictionary. When last entry is read, function returns NULL in key argument
	   Possible keys:
	     "st_size":     val - size in bytes
	     "st_blocks":   val - size in blocks
	     "st_nlink":    val - number of hardlinks
	     "st_ifmt":     val - "S_IFDIR" for folders
	                        "S_IFLNK" for symlinks
	     "LinkTarget":  val - path to symlink target
	__DLLIMPORT afc_error_t AFCKeyValueRead(struct afc_dictionary *dict, char **key, char **
	/* Closes dictionary
	__DLLIMPORT afc_error_t AFCKeyValueClose(struct afc_dictionary *dict);

	/* Returns the context field of the given AFC connection. */
	__DLLIMPORT unsigned int AFCConnectionGetContext(struct afc_connection *conn);
	/* Returns the fs_block_size field of the given AFC connection. */
	__DLLIMPORT unsigned int AFCConnectionGetFSBlockSize(struct afc_connection *conn);
	/* Returns the io_timeout field of the given AFC connection. In iTunes this is
	 * 0. */
	__DLLIMPORT unsigned int AFCConnectionGetIOTimeout(struct afc_connection *conn);
	/* Returns the sock_block_size field of the given AFC connection. */
	__DLLIMPORT unsigned int AFCConnectionGetSocketBlockSize(struct afc_connection *conn);
	/* Closes the given AFC connection. */
	__DLLIMPORT afc_error_t AFCConnectionClose(struct afc_connection *conn);
	/* Registers for device notifications related to the restore process. unknown0
	 * is zero when iTunes calls this. In iTunes,
	 * the callbacks are located at:
	 *      1: $3ac68e-$3ac6b1, calls $3ac542(unknown1, arg, 0)
	 *      2: $3ac66a-$3ac68d, calls $3ac542(unknown1, 0, arg)
	 *      3: $3ac762-$3ac785, calls $3ac6b2(unknown1, arg, 0)
	 *      4: $3ac73e-$3ac761, calls $3ac6b2(unknown1, 0, arg)
	__DLLIMPORT unsigned int AMRestoreRegisterForDeviceNotifications(
				am_restore_device_notification_callback dfu_connect_callback,
				am_restore_device_notification_callback recovery_connect_callback,
				am_restore_device_notification_callback dfu_disconnect_callback,
				am_restore_device_notification_callback recovery_disconnect_callback,
				unsigned int unknown0,
				void *user_info);
	/* Causes the restore functions to spit out (unhelpful) progress messages to
	 * the file specified by the given path. iTunes always calls this right before
	 * restoring with a path of
	 * "$HOME/Library/Logs/iPhone Updater Logs/iPhoneUpdater X.log", where X is an
	 * unused number.
	__DLLIMPORT unsigned int AMRestoreEnableFileLogging(char *path);
	/* Initializes a new option dictionary to default values. Pass the constant
	 * kCFAllocatorDefault as the allocator. The option dictionary looks as
	 * follows:
	 * {
	 *      NORImageType => 'production',
	 *      AutoBootDelay => 0,
	 *      KernelCacheType => 'Release',
	 *      UpdateBaseband => true,
	 *      DFUFileType => 'RELEASE',
	 *      SystemImageType => 'User',
	 *      CreateFilesystemPartitions => true,
	 *      FlashNOR => true,
	 *      RestoreBootArgs => 'rd=md0 nand-enable-reformat=1 -progress'
	 *      BootImageType => 'User'
	 *  }
	 * Returns:
	 *      the option dictionary   if successful
	 *      NULL                    if out of memory
	__DLLIMPORT CFMutableDictionaryRef AMRestoreCreateDefaultOptions(CFAllocatorRef allocator);
	/* ----------------------------------------------------------------------------
	 *   Less-documented public routines
	 * ------------------------------------------------------------------------- */
	__DLLIMPORT unsigned int AMRestorePerformRecoveryModeRestore(struct am_recovery_device *
				rdev, CFDictionaryRef opts, void *callback, void *user_info);
	__DLLIMPORT unsigned int AMRestorePerformRestoreModeRestore(struct am_restore_device *
				rdev, CFDictionaryRef opts, void *callback, void *user_info);
	__DLLIMPORT struct am_restore_device *AMRestoreModeDeviceCreate(unsigned int unknown0,
				unsigned int connection_id, unsigned int unknown1);
	__DLLIMPORT unsigned int AMRestoreCreatePathsForBundle(CFStringRef restore_bundle_path,
				CFStringRef kernel_cache_type, CFStringRef boot_image_type, unsigned int
				unknown0, CFStringRef *firmware_dir_path, CFStringRef *
				kernelcache_restore_path, unsigned int unknown1, CFStringRef *
	__DLLIMPORT unsigned int AMRestoreModeDeviceReboot(struct am_restore_device *rdev);	// Added by JB 30.07.2008
	__DLLIMPORT mach_error_t AMDeviceEnterRecovery(struct am_device *device);
	__DLLIMPORT mach_error_t AMDeviceDisconnect(struct am_device *device);

	/* to use this, start the service "", handle will be the socket to use */
	typedef void (*NOTIFY_CALLBACK)(CFSTR notification, USERDATA data);
	__DLLIMPORT mach_error_t AMDPostNotification(SOCKET socket, CFStringRef  notification, CFStringRef userinfo);
	__DLLIMPORT mach_error_t AMDObserveNotification(SOCKET socket, CFSTR notification);
	__DLLIMPORT mach_error_t AMDListenForNotifications(SOCKET socket, NOTIFY_CALLBACK cb, USERDATA data);
	__DLLIMPORT mach_error_t AMDShutdownNotificationProxy(SOCKET socket);
	/*edits by geohot*/
	__DLLIMPORT mach_error_t AMDeviceDeactivate(struct am_device *device);
	__DLLIMPORT mach_error_t AMDeviceActivate(struct am_device *device, CFDictionaryRef dict);
	__DLLIMPORT mach_error_t AMDeviceRemoveValue(struct am_device *device, unsigned int, CFStringRef cfstring);
	/* ----------------------------------------------------------------------------
	 *   Semi-private routines
	 * ------------------------------------------------------------------------- */
	/*  Pass in a usbmux_listener_1 structure and a usbmux_listener_2 structure
	 *  pointer, which will be filled with the resulting usbmux_listener_2.
	 *  Returns:
	 *      MDERR_OK                if completed successfully
	 *      MDERR_USBMUX_ARG_NULL   if one of the arguments was NULL
	 *      MDERR_USBMUX_FAILED     if the listener was not created successfully
	__DLLIMPORT usbmux_error_t USBMuxListenerCreate(struct usbmux_listener_1 *esi_fp8, struct
										usbmux_listener_2 **eax_fp12);
	/* ----------------------------------------------------------------------------
	 *   Less-documented semi-private routines
	 * ------------------------------------------------------------------------- */
	__DLLIMPORT usbmux_error_t USBMuxListenerHandleData(void *);
	/* ----------------------------------------------------------------------------
	 *   Private routines - here be dragons
	 * ------------------------------------------------------------------------- */
	/* AMRestorePerformRestoreModeRestore() calls this function with a dictionary
	 * in order to perform certain special restore operations
	 * (RESTORED_OPERATION_*). It is thought that this function might enable
	 * significant access to the phone. */
	 typedef unsigned int (*t_performOperation)(struct am_restore_device *rdev,
	 CFDictionaryRef op) __attribute__ ((regparm(2)));
	 t_performOperation _performOperation = (t_performOperation)0x3c39fa4b;
	/* ----------------------------------------------------------------------------
	 *   Less-documented private routines
	 * ------------------------------------------------------------------------- */
	 typedef int (*t_socketForPort)(struct am_restore_device *rdev, unsigned int port)
	 __attribute__ ((regparm(2)));
	 t_socketForPort _socketForPort = (t_socketForPort)(void *)0x3c39f36c;
	 typedef void (*t_restored_send_message)(int port, CFDictionaryRef msg);
	 t_restored_send_message _restored_send_message = (t_restored_send_message)0x3c3a4e40;
	 typedef CFDictionaryRef (*t_restored_receive_message)(int port);
	 t_restored_receive_message _restored_receive_message = (t_restored_receive_message)0x3c3a4d40;
	 typedef unsigned int (*t_sendControlPacket)(struct am_recovery_device *rdev, unsigned
	 int msg1, unsigned int msg2, unsigned int unknown0, unsigned int *unknown1,
	 unsigned char *unknown2) __attribute__ ((regparm(3)));
	 t_sendControlPacket _sendControlPacket = (t_sendControlPacket)0x3c3a3da3;;
	 typedef unsigned int (*t_sendCommandToDevice)(struct am_recovery_device *rdev,
	 CFStringRef cmd) __attribute__ ((regparm(2)));
	 t_sendCommandToDevice _sendCommandToDevice = (t_sendCommandToDevice)0x3c3a3e3b;
	 typedef unsigned int (*t_AMRUSBInterfaceReadPipe)(unsigned int readwrite_pipe, unsigned
	 int read_pipe, unsigned char *data, unsigned int *len);
	 t_AMRUSBInterfaceReadPipe _AMRUSBInterfaceReadPipe = (t_AMRUSBInterfaceReadPipe)0x3c3a27e8;
	 typedef unsigned int (*t_AMRUSBInterfaceWritePipe)(unsigned int readwrite_pipe, unsigned
	 int write_pipe, void *data, unsigned int len);
	 t_AMRUSBInterfaceWritePipe _AMRUSBInterfaceWritePipe = (t_AMRUSBInterfaceWritePipe)0x3c3a27cb;
	int performOperation(am_restore_device *rdev, CFMutableDictionaryRef message);
	int socketForPort(am_restore_device *rdev, unsigned int portnum);
	int sendCommandToDevice(am_recovery_device *rdev, CFStringRef cfs, int block);
	int sendFileToDevice(am_recovery_device *rdev, CFStringRef filename); 

#ifdef __cplusplus


/* -*- mode:c; indent-tabs-mode:nil; c-basic-offset:2; tab-width:2; */

AFC Connection


Locking the Device for Sync

When iTunes sends a new song to the device, the device shows a "Sync in progress" screen and when complete, the Music app on the device re-reads the iTunesDB file so it picks up the new song.

To get this behaviour, first start the notification service:

SOCKET socket;
AMDeviceStartService(dev, CFSTR(""), &socket, NULL);

Now we post a notificaton message to signal that we are going to start a sync:

AMDPostNotification(socket, CFSTR(""), NULL);

Next we open the itunes lock file:

afc_file_ref lockref;
AFCFileRefOpen(conn, "/", 2, &lockref);

Now post a notification to say we are going to lock this file, and try and lock it. If the AFCFileRefLock call fails, pause and repeat.

AMDPostNotification(socket, CFSTR(""), NULL);
mach_error_t error = AFCFileRefLock(conn, lockref);

When the file is successfully locked, post another notification, and stop the notification service.

AMDPostNotification(socket,CFSTR(""), NULL);

Now the sync can proceed, so copy your files across and make the changes to the iTunesDB.

To release the lock, start the notification system again, unlock and close the lock file, and send a sync finished notification message:

AFCFileRefUnlock(conn, lockref);
AFCFileRefClose(conn, lockref);
AMDeviceStartService(dev, CFSTR(""), &socket, NULL);
AMDPostNotification(socket, &CFSTR(""), NULL);

To handle "Slide to Cancel" and terminate sync when user slides cancel switch, use AMDObserveNotification to subscribe notifications about “”. Then start listening for notifications (AMDListenForNotifications) until you get “AMDNotificationFaceplant”. When notification got, you should unlock and close lock file handle (don’t sure if you need to post “syncDidFinish” to proxy, seems it doesn’t matter) and terminate sync gracefully. The same notification is also got when you unplug your device, so you should always be ready for errors.

NOTE: You may find that starting the notification_proxy service once and once only at the start of your app and using the same socket in calls to AMDPostNotification works better. iTunes opens and closes the notification_proxy regularly, but it appears to be a bit flakey when you open/close it all the time.

Private Functions

How to find address of privates functions in iTunesMobileDevice.dll or MobileDevice.framework ?


Libraries Implementations