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|
/*
* iphonebackup.c
* Command line interface to use the device's backup and restore service
*
* Copyright (c) 2009 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
*/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <signal.h>
#include <glib.h>
#include <libiphone/libiphone.h>
#include <libiphone/lockdown.h>
#include <libiphone/mobilebackup.h>
#define MOBILEBACKUP_SERVICE_NAME "com.apple.mobilebackup"
static mobilebackup_client_t mobilebackup = NULL;
static lockdownd_client_t client = NULL;
static iphone_device_t phone = NULL;
static int quit_flag = 0;
enum cmd_mode {
CMD_BACKUP,
CMD_RESTORE,
CMD_LEAVE
};
static plist_t mobilebackup_factory_info_plist_new()
{
/* gather data from lockdown */
GTimeVal tv = {0, 0};
plist_t value_node = NULL;
plist_t root_node = NULL;
char *uuid = NULL;
char *uuid_uppercase = NULL;
plist_t ret = plist_new_dict();
/* get basic device information in one go */
lockdownd_get_value(client, NULL, NULL, &root_node);
/* set fields we understand */
value_node = plist_dict_get_item(root_node, "BuildVersion");
plist_dict_insert_item(ret, "Build Version", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "DeviceName");
plist_dict_insert_item(ret, "Device Name", plist_copy(value_node));
plist_dict_insert_item(ret, "Display Name", plist_copy(value_node));
/* FIXME: How is the GUID generated? */
plist_dict_insert_item(ret, "GUID", plist_new_string("---"));
value_node = plist_dict_get_item(root_node, "InternationalMobileEquipmentIdentity");
if (value_node)
plist_dict_insert_item(ret, "IMEI", plist_copy(value_node));
g_get_current_time(&tv);
plist_dict_insert_item(ret, "Last Backup Date", plist_new_date(tv.tv_sec, tv.tv_usec));
value_node = plist_dict_get_item(root_node, "ProductType");
plist_dict_insert_item(ret, "Product Type", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "ProductVersion");
plist_dict_insert_item(ret, "Product Version", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "SerialNumber");
plist_dict_insert_item(ret, "Serial Number", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "UniqueDeviceID");
iphone_device_get_uuid(phone, &uuid);
plist_dict_insert_item(ret, "Target Identifier", plist_new_string(uuid));
/* uppercase */
uuid_uppercase = g_ascii_strup(uuid, -1);
plist_dict_insert_item(ret, "Unique Identifier", plist_new_string(uuid_uppercase));
free(uuid_uppercase);
free(uuid);
plist_t files = plist_new_dict();
/* FIXME: Embed files as <data> nodes */
plist_dict_insert_item(ret, "iTunes Files", files);
plist_dict_insert_item(ret, "iTunes Version", plist_new_string("9.0.2"));
return ret;
}
enum plist_format_t {
PLIST_FORMAT_XML,
PLIST_FORMAT_BINARY
};
static void buffer_to_filename(char *filename, char *buffer, uint32_t length)
{
FILE *f;
f = fopen(filename, "ab");
fwrite(buffer, sizeof(char), length, f);
fclose(f);
}
static int plist_write_to_filename(plist_t plist, char *filename, enum plist_format_t format)
{
char *buffer = NULL;
uint32_t length;
if (!plist || !filename)
return 0;
if (format == PLIST_FORMAT_XML)
plist_to_xml(plist, &buffer, &length);
else if (format == PLIST_FORMAT_BINARY)
plist_to_bin(plist, &buffer, &length);
else
return 0;
buffer_to_filename(filename, buffer, length);
free(buffer);
return 1;
}
static int plist_strcmp(plist_t node, const char *str)
{
char *buffer = NULL;
int ret = 0;
if (plist_get_node_type(node) != PLIST_STRING)
return ret;
plist_get_string_val(node, &buffer);
ret = strcmp(buffer, str);
free(buffer);
return ret;
}
static plist_t device_link_message_factory_process_message_new(plist_t content)
{
plist_t ret = plist_new_array();
plist_array_append_item(ret, plist_new_string("DLMessageProcessMessage"));
plist_array_append_item(ret, content);
return ret;
}
static void mobilebackup_cancel_backup_with_error(const char *reason)
{
plist_t node = plist_new_dict();
plist_dict_insert_item(node, "BackupMessageTypeKey", plist_new_string("BackupMessageError"));
plist_dict_insert_item(node, "BackupErrorReasonKey", plist_new_string(reason));
plist_t message = device_link_message_factory_process_message_new(node);
mobilebackup_send(mobilebackup, message);
plist_free(message);
message = NULL;
}
static void mobilebackup_write_status(char *path, int status)
{
struct stat st;
plist_t status_plist = plist_new_dict();
plist_dict_insert_item(status_plist, "Backup Success", plist_new_bool(status));
char *file_path = g_build_path(G_DIR_SEPARATOR_S, path, "Status.plist", NULL);
if (stat(file_path, &st) == 0)
remove(file_path);
plist_write_to_filename(status_plist, file_path, PLIST_FORMAT_XML);
g_free(file_path);
plist_free(status_plist);
}
static void debug_plist(plist_t a)
{
char *buffer = NULL;
uint32_t length = 0;
if (a == NULL)
return;
plist_to_xml(a, &buffer, &length);
printf("Printing %i bytes plist:\n%s\n", length, buffer);
free(buffer);
}
/**
* signal handler function for cleaning up properly
*/
static void clean_exit(int sig)
{
fprintf(stderr, "Exiting...\n");
quit_flag++;
}
static void print_usage(int argc, char **argv)
{
char *name = NULL;
name = strrchr(argv[0], '/');
printf("Usage: %s [OPTIONS] CMD [DIRECTORY]\n", (name ? name + 1: argv[0]));
printf("Create or restore backup from the current or specified directory.\n\n");
printf("commands:\n");
printf(" backup\tSaves a device backup into DIRECTORY\n");
printf(" restore\tRestores a device backup from DIRECTORY.\n\n");
printf("options:\n");
printf(" -d, --debug\t\tenable communication debugging\n");
printf(" -u, --uuid UUID\ttarget specific device by its 40-digit device UUID\n");
printf(" -h, --help\t\tprints usage information\n");
printf("\n");
}
int main(int argc, char *argv[])
{
iphone_error_t ret = IPHONE_E_UNKNOWN_ERROR;
int i;
char uuid[41];
uint16_t port = 0;
uuid[0] = 0;
int cmd = -1;
char *backup_directory = NULL;
struct stat st;
plist_t node = NULL;
plist_t node_tmp = NULL;
char *buffer = NULL;
uint64_t length = 0;
uint64_t backup_total_size = 0;
uint64_t c = 0;
/* we need to exit cleanly on running backups and restores or we cause havok */
signal(SIGINT, clean_exit);
signal(SIGQUIT, clean_exit);
signal(SIGTERM, clean_exit);
signal(SIGPIPE, SIG_IGN);
/* parse cmdline args */
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")) {
iphone_set_debug_level(1);
continue;
}
else if (!strcmp(argv[i], "-u") || !strcmp(argv[i], "--uuid")) {
i++;
if (!argv[i] || (strlen(argv[i]) != 40)) {
print_usage(argc, argv);
return 0;
}
strcpy(uuid, argv[i]);
continue;
}
else if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
print_usage(argc, argv);
return 0;
}
else if (!strcmp(argv[i], "backup")) {
cmd = CMD_BACKUP;
}
else if (!strcmp(argv[i], "restore")) {
cmd = CMD_RESTORE;
}
else if (backup_directory == NULL) {
backup_directory = argv[i];
}
else {
print_usage(argc, argv);
return 0;
}
}
/* verify options */
if (cmd == -1) {
printf("No command specified.\n");
print_usage(argc, argv);
return -1;
}
if (backup_directory == NULL) {
printf("No target backup directory specified.\n");
print_usage(argc, argv);
return -1;
}
/* verify if passed backup directory exists */
if (stat(backup_directory, &st) != 0) {
printf("ERROR: Backup directory \"%s\" does not exist!\n", backup_directory);
return -1;
}
/* restore directory must contain an Info.plist */
char *info_path = g_build_path(G_DIR_SEPARATOR_S, backup_directory, "Info.plist", NULL);
if (cmd == CMD_RESTORE) {
if (stat(info_path, &st) != 0) {
g_free(info_path);
printf("ERROR: Backup directory \"%s\" is invalid. No Info.plist found.\n", backup_directory);
return -1;
}
}
printf("Backup directory is \"%s\"\n", backup_directory);
if (uuid[0] != 0) {
ret = iphone_device_new(&phone, uuid);
if (ret != IPHONE_E_SUCCESS) {
printf("No device found with uuid %s, is it plugged in?\n", uuid);
return -1;
}
}
else
{
ret = iphone_device_new(&phone, NULL);
if (ret != IPHONE_E_SUCCESS) {
printf("No device found, is it plugged in?\n");
return -1;
}
}
if (LOCKDOWN_E_SUCCESS != lockdownd_client_new_with_handshake(phone, &client, "iphonebackup")) {
iphone_device_free(phone);
return -1;
}
/* start syslog_relay service and retrieve port */
ret = lockdownd_start_service(client, MOBILEBACKUP_SERVICE_NAME, &port);
if ((ret == LOCKDOWN_E_SUCCESS) && port) {
printf("Started \"%s\" service on port %d.\n", MOBILEBACKUP_SERVICE_NAME, port);
mobilebackup_client_new(phone, port, &mobilebackup);
if (quit_flag > 0) {
printf("Aborting backup. Cancelled by user.\n");
cmd = CMD_LEAVE;
}
switch(cmd) {
case CMD_BACKUP:
printf("Starting backup...\n");
/* TODO: check domain com.apple.mobile.backup key RequiresEncrypt and WillEncrypt with lockdown */
/* TODO: verify battery on AC enough battery remaining */
/* create Info.plist (Device infos, IC-Info.sidb, photos, app_ids, iTunesPrefs) */
printf("Creating Info.plist.\n");
plist_t info_plist = mobilebackup_factory_info_plist_new();
if (stat(info_path, &st) == 0)
remove(info_path);
plist_write_to_filename(info_plist, info_path, PLIST_FORMAT_XML);
g_free(info_path);
/* close down the lockdown connection as it is no longer needed */
if (client) {
lockdownd_client_free(client);
client = NULL;
}
/* create Manifest.plist (backup manifest (backup state)) */
char *manifest_path = g_build_path(G_DIR_SEPARATOR_S, backup_directory, "Manifest.plist", NULL);
/* FIXME: We should read the last Manifest.plist and send it to the device */
plist_t manifest_plist = NULL;
if (stat(manifest_path, &st) == 0)
remove(manifest_path);
/* create Status.plist with failed status for now */
mobilebackup_write_status(backup_directory, 0);
/* request backup from device with manifest from last backup */
printf("Requesting backup from device...\n");
node = plist_new_dict();
if (manifest_plist)
plist_dict_insert_item(node, "BackupManifestKey", manifest_plist);
plist_dict_insert_item(node, "BackupComputerBasePathKey", plist_new_string("/"));
plist_dict_insert_item(node, "BackupMessageTypeKey", plist_new_string("BackupMessageBackupRequest"));
plist_dict_insert_item(node, "BackupProtocolVersion", plist_new_string("1.6"));
plist_t message = device_link_message_factory_process_message_new(node);
mobilebackup_send(mobilebackup, message);
plist_free(message);
message = NULL;
/* get response */
int backup_ok = 0;
mobilebackup_receive(mobilebackup, &message);
node = plist_array_get_item(message, 0);
if (!plist_strcmp(node, "DLMessageProcessMessage")) {
node = plist_array_get_item(message, 1);
node = plist_dict_get_item(node, "BackupMessageTypeKey");
if (node && !plist_strcmp(node, "BackupMessageBackupReplyOK")) {
printf("Device accepts manifest and will send backup data now...\n");
backup_ok = 1;
printf("Acknowledging...\n");
printf("Please wait. Device prepares backup data...\n");
/* send it back for ACK */
mobilebackup_send(mobilebackup, message);
}
} else {
printf("Unhandled message received!\n");
debug_plist(message);
}
plist_free(message);
message = NULL;
if (!backup_ok) {
printf("ERROR: Device rejected to start the backup process.\n");
break;
}
/* reset backup status */
backup_ok = 0;
/* receive and save DLSendFile files and metadata, ACK each */
int file_index = 0;
int hunk_index = 0;
uint64_t backup_real_size = 0;
char *file_path = NULL;
char *file_ext = NULL;
char *filename_mdinfo = NULL;
char *filename_mddata = NULL;
char *filename_source = NULL;
char *format_size = NULL;
gboolean is_manifest = FALSE;
uint8_t b = 0;
do {
mobilebackup_receive(mobilebackup, &message);
node = plist_array_get_item(message, 0);
if (plist_strcmp(node, "DLSendFile"))
break;
node_tmp = plist_array_get_item(message, 2);
/* first message hunk contains total backup size */
if (hunk_index == 0) {
node = plist_dict_get_item(node_tmp, "BackupTotalSizeKey");
if (node) {
plist_get_uint_val(node, &backup_total_size);
format_size = g_format_size_for_display(backup_total_size);
printf("Backup data requires %s on the disk.\n", format_size);
g_free(format_size);
}
}
/* print out "received" if DLFileStatusKey is 2 (last file piece) */
node = plist_dict_get_item(node_tmp, "DLFileStatusKey");
plist_get_uint_val(node, &c);
/* get source filename */
node = plist_dict_get_item(node_tmp, "BackupManifestKey");
b = 0;
if (node) {
plist_get_bool_val(node, &b);
}
is_manifest = (b == 1) ? TRUE: FALSE;
/* increased received size for each completed file */
if ((c == 2) && (!is_manifest)) {
/* get source filename */
node = plist_dict_get_item(node_tmp, "DLFileSource");
plist_get_string_val(node, &filename_source);
node = plist_dict_get_item(node_tmp, "DLFileAttributesKey");
node = plist_dict_get_item(node, "FileSize");
plist_get_uint_val(node, &length);
backup_real_size += length;
file_index++;
format_size = g_format_size_for_display(backup_real_size);
printf("(%s", format_size);
g_free(format_size);
format_size = g_format_size_for_display(backup_total_size);
printf("/%s): ", format_size);
g_free(format_size);
printf("Received file %s... ", filename_source);
if (filename_source)
free(filename_source);
/* save <hash>.mdinfo */
node = plist_dict_get_item(node_tmp, "BackupFileInfo");
if (node) {
node = plist_dict_get_item(node_tmp, "DLFileDest");
plist_get_string_val(node, &file_path);
file_ext = (char *)g_strconcat(file_path, ".mdinfo", NULL);
filename_mdinfo = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
node = plist_dict_get_item(node_tmp, "BackupFileInfo");
plist_write_to_filename(node, filename_mdinfo, PLIST_FORMAT_BINARY);
g_free(file_ext);
g_free(filename_mdinfo);
}
}
/* save <hash>.mddata */
node = plist_dict_get_item(node_tmp, "BackupFileInfo");
if (node_tmp && file_path) {
node = plist_dict_get_item(node_tmp, "DLFileDest");
plist_get_string_val(node, &file_path);
if (!is_manifest)
file_ext = (char *)g_strconcat(file_path, ".mddata", NULL);
else
file_ext = g_strdup(file_path);
filename_mddata = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
node_tmp = plist_array_get_item(message, 1);
plist_get_data_val(node_tmp, &buffer, &length);
buffer_to_filename(filename_mddata, buffer, length);
/* activate currently sent manifest */
if ((c == 2) && (is_manifest)) {
rename(filename_mddata, manifest_path);
}
free(buffer);
buffer = NULL;
g_free(filename_mddata);
}
if ((c == 2) && (!is_manifest)) {
printf("DONE\n");
}
hunk_index++;
if (file_ext)
free(file_ext);
plist_free(message);
message = NULL;
if (quit_flag > 0) {
/* need to cancel the backup here */
mobilebackup_cancel_backup_with_error("Cancelling DLSendFile");
plist_free(message);
message = NULL;
break;
}
/* acknowlegdge that we received the file */
node = plist_new_dict();
plist_dict_insert_item(node, "BackupMessageTypeKey", plist_new_string("kBackupMessageBackupFileReceived"));
message = device_link_message_factory_process_message_new(node);
mobilebackup_send(mobilebackup, message);
plist_free(message);
message = NULL;
} while (!plist_strcmp(node, "DLSendFile"));
printf("Received %d files from device.\n", file_index);
if (!plist_strcmp(node, "DLMessageProcessMessage")) {
node_tmp = plist_array_get_item(message, 1);
node = plist_dict_get_item(node_tmp, "BackupMessageTypeKey");
/* check if we received the final "backup finished" message */
if (node && !plist_strcmp(node, "BackupMessageBackupFinished")) {
/* backup finished */
/* process BackupFilesToDeleteKey */
node = plist_dict_get_item(node_tmp, "BackupFilesToDeleteKey");
if (node) {
length = plist_array_get_size(node);
i = 0;
while ((node_tmp = plist_array_get_item(node, i++)) != NULL) {
plist_get_string_val(node_tmp, &file_path);
file_ext = (char *)g_strconcat(file_path, ".mddata", NULL);
filename_mddata = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
g_free(file_ext);
printf("Removing \"%s\"... ", filename_mddata);
if (!remove( filename_mddata )) {
printf("DONE\n");
} else
printf("FAILED\n");
file_ext = (char *)g_strconcat(file_path, ".mdinfo", NULL);
filename_mdinfo = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL);
g_free(file_ext);
printf("Removing \"%s\"... ", filename_mdinfo);
if (!remove( filename_mdinfo )) {
printf("DONE\n");
} else
printf("FAILED\n");
}
}
/* save last valid Manifest.plist */
node_tmp = plist_array_get_item(message, 1);
manifest_plist = plist_dict_get_item(node_tmp, "BackupManifestKey");
if (manifest_plist) {
remove(manifest_path);
printf("Storing Manifest.plist...\n");
plist_write_to_filename(manifest_plist, manifest_path, PLIST_FORMAT_XML);
}
backup_ok = 1;
}
}
if (backup_ok) {
/* create: Status.plist (Info on how the backup process turned out) */
printf("Backup Successful.\n");
mobilebackup_write_status(backup_directory, 1);
} else {
printf("Backup Failed.\n");
}
if (manifest_path)
g_free(manifest_path);
if (node)
plist_free(node);
break;
case CMD_RESTORE:
printf("Restoring backup is NOT IMPLEMENTED.\n");
/* verify battery on AC enough battery remaining */
/* request restore from device with manifest (BackupMessageRestoreMigrate) */
/* read mddata/mdinfo files and send to devices using DLSendFile */
/* signal restore finished message to device */
/* close down lockdown connection as it is no longer needed */
lockdownd_client_free(client);
client = NULL;
break;
case CMD_LEAVE:
default:
break;
}
} else {
printf("ERROR: Could not start service %s.\n", MOBILEBACKUP_SERVICE_NAME);
lockdownd_client_free(client);
client = NULL;
}
if (client) {
lockdownd_client_free(client);
client = NULL;
}
if (mobilebackup)
mobilebackup_client_free(mobilebackup);
iphone_device_free(phone);
return 0;
}
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