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idevicebackup2.c
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// TODO: rewrite restore to swift or?
/*
* idevicebackup2.c
* Command line interface to use the device's backup and restore service
*
* Copyright (c) 2010-2022 Nikias Bassen, All Rights Reserved.
* Copyright (c) 2009-2010 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
#define TOOL_NAME "idevicebackup2"
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
#include <dirent.h>
#include <libgen.h>
#include <ctype.h>
#include <time.h>
#include <getopt.h>
#include <libimobiledevice/libimobiledevice.h>
#include <libimobiledevice/lockdown.h>
#include <libimobiledevice/mobilebackup2.h>
#include <libimobiledevice/notification_proxy.h>
#include <libimobiledevice/afc.h>
#include <libimobiledevice/installation_proxy.h>
#include <libimobiledevice/sbservices.h>
#include <libimobiledevice/diagnostics_relay.h>
#include <libimobiledevice-glue/utils.h>
#include <plist/plist.h>
#include <endianness.h>
#define LOCK_ATTEMPTS 50
#define LOCK_WAIT 200000
#ifdef WIN32
#include <windows.h>
#include <conio.h>
#define sleep(x) Sleep(x*1000)
#ifndef ELOOP
#define ELOOP 114
#endif
#else
#include <termios.h>
#include <sys/statvfs.h>
#endif
#include <sys/stat.h>
#define CODE_SUCCESS 0x00
#define CODE_ERROR_LOCAL 0x06
#define CODE_ERROR_REMOTE 0x0b
#define CODE_FILE_DATA 0x0c
static int verbose = 1;
static int quit_flag = 0;
#define PRINT_VERBOSE(min_level, ...) if (verbose >= min_level) { printf(__VA_ARGS__); };
enum cmd_mode {
CMD_BACKUP,
CMD_RESTORE,
CMD_INFO,
CMD_LIST,
CMD_UNBACK,
CMD_CHANGEPW,
CMD_LEAVE,
CMD_CLOUD
};
enum cmd_flags {
CMD_FLAG_RESTORE_SYSTEM_FILES = (1 << 1),
CMD_FLAG_RESTORE_NO_REBOOT = (1 << 2),
CMD_FLAG_RESTORE_COPY_BACKUP = (1 << 3),
CMD_FLAG_RESTORE_SETTINGS = (1 << 4),
CMD_FLAG_RESTORE_REMOVE_ITEMS = (1 << 5),
CMD_FLAG_ENCRYPTION_ENABLE = (1 << 6),
CMD_FLAG_ENCRYPTION_DISABLE = (1 << 7),
CMD_FLAG_ENCRYPTION_CHANGEPW = (1 << 8),
CMD_FLAG_FORCE_FULL_BACKUP = (1 << 9),
CMD_FLAG_CLOUD_ENABLE = (1 << 10),
CMD_FLAG_CLOUD_DISABLE = (1 << 11),
CMD_FLAG_RESTORE_SKIP_APPS = (1 << 12)
};
static int backup_domain_changed = 0;
static void notify_cb(const char *notification, void *userdata)
{
if (strlen(notification) == 0) {
return;
}
if (!strcmp(notification, NP_SYNC_CANCEL_REQUEST)) {
PRINT_VERBOSE(1, "User has cancelled the backup process on the device.\n");
quit_flag++;
} else if (!strcmp(notification, NP_BACKUP_DOMAIN_CHANGED)) {
backup_domain_changed = 1;
} else {
PRINT_VERBOSE(1, "Unhandled notification '%s' (TODO: implement)\n", notification);
}
}
static void mobilebackup_afc_get_file_contents(afc_client_t afc, const char *filename, char **data, uint64_t *size)
{
if (!afc || !data || !size) {
return;
}
char **fileinfo = NULL;
uint32_t fsize = 0;
afc_get_file_info(afc, filename, &fileinfo);
if (!fileinfo) {
return;
}
int i;
for (i = 0; fileinfo[i]; i+=2) {
if (!strcmp(fileinfo[i], "st_size")) {
fsize = atol(fileinfo[i+1]);
break;
}
}
afc_dictionary_free(fileinfo);
if (fsize == 0) {
return;
}
uint64_t f = 0;
afc_file_open(afc, filename, AFC_FOPEN_RDONLY, &f);
if (!f) {
return;
}
char *buf = (char*)malloc((uint32_t)fsize);
uint32_t done = 0;
while (done < fsize) {
uint32_t bread = 0;
afc_file_read(afc, f, buf+done, 65536, &bread);
if (bread > 0) {
done += bread;
} else {
break;
}
}
if (done == fsize) {
*size = fsize;
*data = buf;
} else {
free(buf);
}
afc_file_close(afc, f);
}
static int __mkdir(const char* path, int mode)
{
#ifdef WIN32
return mkdir(path);
#else
return mkdir(path, mode);
#endif
}
static int mkdir_with_parents(const char *dir, int mode)
{
if (!dir) return -1;
if (__mkdir(dir, mode) == 0) {
return 0;
}
if (errno == EEXIST) return 0;
int res;
char *parent = strdup(dir);
char *parentdir = dirname(parent);
if (parentdir) {
res = mkdir_with_parents(parentdir, mode);
} else {
res = -1;
}
free(parent);
if (res == 0) {
mkdir_with_parents(dir, mode);
}
return res;
}
#ifdef WIN32
static int win32err_to_errno(int err_value)
{
switch (err_value) {
case ERROR_FILE_NOT_FOUND:
return ENOENT;
case ERROR_ALREADY_EXISTS:
return EEXIST;
default:
return EFAULT;
}
}
#endif
static int remove_file(const char* path)
{
int e = 0;
#ifdef WIN32
if (!DeleteFile(path)) {
e = win32err_to_errno(GetLastError());
}
#else
if (remove(path) < 0) {
e = errno;
}
#endif
return e;
}
static int remove_directory(const char* path)
{
int e = 0;
#ifdef WIN32
if (!RemoveDirectory(path)) {
e = win32err_to_errno(GetLastError());
}
#else
if (remove(path) < 0) {
e = errno;
}
#endif
return e;
}
struct ir_entry {
char *name;
struct ir_entry *next;
};
static void scan_directory(const char *path, struct ir_entry **files, struct ir_entry **directories)
{
DIR* cur_dir = opendir(path);
if (cur_dir) {
struct dirent* ep;
while ((ep = readdir(cur_dir))) {
if ((strcmp(ep->d_name, ".") == 0) || (strcmp(ep->d_name, "..") == 0)) {
continue;
}
char *fpath = string_build_path(path, ep->d_name, NULL);
if (fpath) {
#ifdef HAVE_DIRENT_D_TYPE
if (ep->d_type & DT_DIR) {
#else
struct stat st;
if (stat(fpath, &st) != 0) return;
if (S_ISDIR(st.st_mode)) {
#endif
struct ir_entry *ent = malloc(sizeof(struct ir_entry));
if (!ent) return;
ent->name = fpath;
ent->next = *directories;
*directories = ent;
scan_directory(fpath, files, directories);
fpath = NULL;
} else {
struct ir_entry *ent = malloc(sizeof(struct ir_entry));
if (!ent) return;
ent->name = fpath;
ent->next = *files;
*files = ent;
fpath = NULL;
}
}
}
closedir(cur_dir);
}
}
static int rmdir_recursive(const char* path)
{
int res = 0;
struct ir_entry *files = NULL;
struct ir_entry *directories = NULL;
struct ir_entry *ent;
ent = malloc(sizeof(struct ir_entry));
if (!ent) return ENOMEM;
ent->name = strdup(path);
ent->next = NULL;
directories = ent;
scan_directory(path, &files, &directories);
ent = files;
while (ent) {
struct ir_entry *del = ent;
res = remove_file(ent->name);
free(ent->name);
ent = ent->next;
free(del);
}
ent = directories;
while (ent) {
struct ir_entry *del = ent;
res = remove_directory(ent->name);
free(ent->name);
ent = ent->next;
free(del);
}
return res;
}
static char* get_uuid()
{
const char *chars = "ABCDEF0123456789";
int i = 0;
char *uuid = (char*)malloc(sizeof(char) * 33);
srand(time(NULL));
for (i = 0; i < 32; i++) {
uuid[i] = chars[rand() % 16];
}
uuid[32] = '\0';
return uuid;
}
static plist_t mobilebackup_factory_info_plist_new(const char* udid, idevice_t device, afc_client_t afc)
{
/* gather data from lockdown */
plist_t value_node = NULL;
plist_t root_node = NULL;
plist_t itunes_settings = NULL;
plist_t min_itunes_version = NULL;
char *udid_uppercase = NULL;
lockdownd_client_t lockdown = NULL;
if (lockdownd_client_new_with_handshake(device, &lockdown, TOOL_NAME) != LOCKDOWN_E_SUCCESS) {
return NULL;
}
plist_t ret = plist_new_dict();
/* get basic device information in one go */
lockdownd_get_value(lockdown, NULL, NULL, &root_node);
/* get iTunes settings */
lockdownd_get_value(lockdown, "com.apple.iTunes", NULL, &itunes_settings);
/* get minimum iTunes version */
lockdownd_get_value(lockdown, "com.apple.mobile.iTunes", "MinITunesVersion", &min_itunes_version);
lockdownd_client_free(lockdown);
/* get a list of installed user applications */
plist_t app_dict = plist_new_dict();
plist_t installed_apps = plist_new_array();
instproxy_client_t ip = NULL;
if (instproxy_client_start_service(device, &ip, TOOL_NAME) == INSTPROXY_E_SUCCESS) {
plist_t client_opts = instproxy_client_options_new();
instproxy_client_options_add(client_opts, "ApplicationType", "User", NULL);
instproxy_client_options_set_return_attributes(client_opts, "CFBundleIdentifier", "ApplicationSINF", "iTunesMetadata", NULL);
plist_t apps = NULL;
instproxy_browse(ip, client_opts, &apps);
sbservices_client_t sbs = NULL;
if (sbservices_client_start_service(device, &sbs, TOOL_NAME) != SBSERVICES_E_SUCCESS) {
printf("Couldn't establish sbservices connection. Continuing anyway.\n");
}
if (apps && (plist_get_node_type(apps) == PLIST_ARRAY)) {
uint32_t app_count = plist_array_get_size(apps);
uint32_t i;
for (i = 0; i < app_count; i++) {
plist_t app_entry = plist_array_get_item(apps, i);
plist_t bundle_id = plist_dict_get_item(app_entry, "CFBundleIdentifier");
if (bundle_id) {
char *bundle_id_str = NULL;
plist_array_append_item(installed_apps, plist_copy(bundle_id));
plist_get_string_val(bundle_id, &bundle_id_str);
plist_t sinf = plist_dict_get_item(app_entry, "ApplicationSINF");
plist_t meta = plist_dict_get_item(app_entry, "iTunesMetadata");
if (sinf && meta) {
plist_t adict = plist_new_dict();
plist_dict_set_item(adict, "ApplicationSINF", plist_copy(sinf));
if (sbs) {
char *pngdata = NULL;
uint64_t pngsize = 0;
sbservices_get_icon_pngdata(sbs, bundle_id_str, &pngdata, &pngsize);
if (pngdata) {
plist_dict_set_item(adict, "PlaceholderIcon", plist_new_data(pngdata, pngsize));
free(pngdata);
}
}
plist_dict_set_item(adict, "iTunesMetadata", plist_copy(meta));
plist_dict_set_item(app_dict, bundle_id_str, adict);
}
free(bundle_id_str);
}
}
}
plist_free(apps);
if (sbs) {
sbservices_client_free(sbs);
}
instproxy_client_options_free(client_opts);
instproxy_client_free(ip);
}
/* Applications */
plist_dict_set_item(ret, "Applications", app_dict);
/* set fields we understand */
value_node = plist_dict_get_item(root_node, "BuildVersion");
plist_dict_set_item(ret, "Build Version", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "DeviceName");
plist_dict_set_item(ret, "Device Name", plist_copy(value_node));
plist_dict_set_item(ret, "Display Name", plist_copy(value_node));
char *uuid = get_uuid();
plist_dict_set_item(ret, "GUID", plist_new_string(uuid));
free(uuid);
value_node = plist_dict_get_item(root_node, "IntegratedCircuitCardIdentity");
if (value_node)
plist_dict_set_item(ret, "ICCID", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "InternationalMobileEquipmentIdentity");
if (value_node)
plist_dict_set_item(ret, "IMEI", plist_copy(value_node));
/* Installed Applications */
plist_dict_set_item(ret, "Installed Applications", installed_apps);
plist_dict_set_item(ret, "Last Backup Date", plist_new_date(time(NULL) - MAC_EPOCH, 0));
value_node = plist_dict_get_item(root_node, "MobileEquipmentIdentifier");
if (value_node)
plist_dict_set_item(ret, "MEID", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "PhoneNumber");
if (value_node && (plist_get_node_type(value_node) == PLIST_STRING)) {
plist_dict_set_item(ret, "Phone Number", plist_copy(value_node));
}
/* FIXME Product Name */
value_node = plist_dict_get_item(root_node, "ProductType");
plist_dict_set_item(ret, "Product Type", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "ProductVersion");
plist_dict_set_item(ret, "Product Version", plist_copy(value_node));
value_node = plist_dict_get_item(root_node, "SerialNumber");
plist_dict_set_item(ret, "Serial Number", plist_copy(value_node));
/* FIXME Sync Settings? */
value_node = plist_dict_get_item(root_node, "UniqueDeviceID");
plist_dict_set_item(ret, "Target Identifier", plist_new_string(udid));
plist_dict_set_item(ret, "Target Type", plist_new_string("Device"));
/* uppercase */
udid_uppercase = string_toupper((char*)udid);
plist_dict_set_item(ret, "Unique Identifier", plist_new_string(udid_uppercase));
free(udid_uppercase);
char *data_buf = NULL;
uint64_t data_size = 0;
mobilebackup_afc_get_file_contents(afc, "/Books/iBooksData2.plist", &data_buf, &data_size);
if (data_buf) {
plist_dict_set_item(ret, "iBooks Data 2", plist_new_data(data_buf, data_size));
free(data_buf);
}
plist_t files = plist_new_dict();
const char *itunesfiles[] = {
"ApertureAlbumPrefs",
"IC-Info.sidb",
"IC-Info.sidv",
"PhotosFolderAlbums",
"PhotosFolderName",
"PhotosFolderPrefs",
"VoiceMemos.plist",
"iPhotoAlbumPrefs",
"iTunesApplicationIDs",
"iTunesPrefs",
"iTunesPrefs.plist",
NULL
};
int i = 0;
for (i = 0; itunesfiles[i]; i++) {
data_buf = NULL;
data_size = 0;
char *fname = (char*)malloc(strlen("/iTunes_Control/iTunes/") + strlen(itunesfiles[i]) + 1);
strcpy(fname, "/iTunes_Control/iTunes/");
strcat(fname, itunesfiles[i]);
mobilebackup_afc_get_file_contents(afc, fname, &data_buf, &data_size);
free(fname);
if (data_buf) {
plist_dict_set_item(files, itunesfiles[i], plist_new_data(data_buf, data_size));
free(data_buf);
}
}
plist_dict_set_item(ret, "iTunes Files", files);
plist_dict_set_item(ret, "iTunes Settings", itunes_settings ? plist_copy(itunes_settings) : plist_new_dict());
/* since we usually don't have iTunes, let's get the minimum required iTunes version from the device */
if (min_itunes_version) {
plist_dict_set_item(ret, "iTunes Version", plist_copy(min_itunes_version));
} else {
plist_dict_set_item(ret, "iTunes Version", plist_new_string("10.0.1"));
}
plist_free(itunes_settings);
plist_free(min_itunes_version);
plist_free(root_node);
return ret;
}
static int write_restore_applications(plist_t info_plist, afc_client_t afc)
{
int res = -1;
uint64_t restore_applications_file = 0;
char * applications_plist_xml = NULL;
uint32_t applications_plist_xml_length = 0;
plist_t applications_plist = plist_dict_get_item(info_plist, "Applications");
if (!applications_plist) {
printf("No Applications in Info.plist, skipping creation of RestoreApplications.plist\n");
return 0;
}
plist_to_xml(applications_plist, &applications_plist_xml, &applications_plist_xml_length);
if (!applications_plist_xml) {
printf("Error preparing RestoreApplications.plist\n");
goto leave;
}
afc_error_t afc_err = 0;
afc_err = afc_make_directory(afc, "/iTunesRestore");
if (afc_err != AFC_E_SUCCESS) {
printf("Error creating directory /iTunesRestore, error code %d\n", afc_err);
goto leave;
}
afc_err = afc_file_open(afc, "/iTunesRestore/RestoreApplications.plist", AFC_FOPEN_WR, &restore_applications_file);
if (afc_err != AFC_E_SUCCESS || !restore_applications_file) {
printf("Error creating /iTunesRestore/RestoreApplications.plist, error code %d\n", afc_err);
goto leave;
}
uint32_t bytes_written = 0;
afc_err = afc_file_write(afc, restore_applications_file, applications_plist_xml, applications_plist_xml_length, &bytes_written);
if (afc_err != AFC_E_SUCCESS || bytes_written != applications_plist_xml_length) {
printf("Error writing /iTunesRestore/RestoreApplications.plist, error code %d, wrote %u of %u bytes\n", afc_err, bytes_written, applications_plist_xml_length);
goto leave;
}
afc_err = afc_file_close(afc, restore_applications_file);
restore_applications_file = 0;
if (afc_err != AFC_E_SUCCESS) {
goto leave;
}
/* success */
res = 0;
leave:
free(applications_plist_xml);
if (restore_applications_file) {
afc_file_close(afc, restore_applications_file);
restore_applications_file = 0;
}
return res;
}
static int mb2_status_check_snapshot_state(const char *path, const char *udid, const char *matches)
{
int ret = 0;
plist_t status_plist = NULL;
char *file_path = string_build_path(path, udid, "Status.plist", NULL);
plist_read_from_filename(&status_plist, file_path);
free(file_path);
if (!status_plist) {
printf("Could not read Status.plist!\n");
return ret;
}
plist_t node = plist_dict_get_item(status_plist, "SnapshotState");
if (node && (plist_get_node_type(node) == PLIST_STRING)) {
char* sval = NULL;
plist_get_string_val(node, &sval);
if (sval) {
ret = (strcmp(sval, matches) == 0) ? 1 : 0;
free(sval);
}
} else {
printf("%s: ERROR could not get SnapshotState key from Status.plist!\n", __func__);
}
plist_free(status_plist);
return ret;
}
static void do_post_notification(idevice_t device, const char *notification)
{
lockdownd_service_descriptor_t service = NULL;
np_client_t np;
lockdownd_client_t lockdown = NULL;
if (lockdownd_client_new_with_handshake(device, &lockdown, TOOL_NAME) != LOCKDOWN_E_SUCCESS) {
return;
}
lockdownd_error_t ldret = lockdownd_start_service(lockdown, NP_SERVICE_NAME, &service);
if (ldret == LOCKDOWN_E_SUCCESS) {
np_client_new(device, service, &np);
if (np) {
np_post_notification(np, notification);
np_client_free(np);
}
} else {
printf("ERROR: Could not start service %s: %s\n", NP_SERVICE_NAME, lockdownd_strerror(ldret));
}
if (service) {
lockdownd_service_descriptor_free(service);
service = NULL;
}
lockdownd_client_free(lockdown);
}
static void print_progress_real(double progress, int flush)
{
int i = 0;
PRINT_VERBOSE(1, "\r[");
for(i = 0; i < 50; i++) {
if(i < progress / 2) {
PRINT_VERBOSE(1, "=");
} else {
PRINT_VERBOSE(1, " ");
}
}
PRINT_VERBOSE(1, "] %3.0f%%", progress);
if (flush > 0) {
fflush(stdout);
if (progress == 100)
PRINT_VERBOSE(1, "\n");
}
}
static void print_progress(uint64_t current, uint64_t total)
{
char *format_size = NULL;
double progress = ((double)current/(double)total)*100;
if (progress < 0)
return;
if (progress > 100)
progress = 100;
print_progress_real((double)progress, 0);
format_size = string_format_size(current);
PRINT_VERBOSE(1, " (%s", format_size);
free(format_size);
format_size = string_format_size(total);
PRINT_VERBOSE(1, "/%s) ", format_size);
free(format_size);
fflush(stdout);
if (progress == 100)
PRINT_VERBOSE(1, "\n");
}
static double overall_progress = 0;
static void mb2_set_overall_progress(double progress)
{
if (progress > 0.0)
overall_progress = progress;
}
static void mb2_set_overall_progress_from_message(plist_t message, char* identifier)
{
plist_t node = NULL;
double progress = 0.0;
if (!strcmp(identifier, "DLMessageDownloadFiles")) {
node = plist_array_get_item(message, 3);
} else if (!strcmp(identifier, "DLMessageUploadFiles")) {
node = plist_array_get_item(message, 2);
} else if (!strcmp(identifier, "DLMessageMoveFiles") || !strcmp(identifier, "DLMessageMoveItems")) {
node = plist_array_get_item(message, 3);
} else if (!strcmp(identifier, "DLMessageRemoveFiles") || !strcmp(identifier, "DLMessageRemoveItems")) {
node = plist_array_get_item(message, 3);
}
if (node != NULL) {
plist_get_real_val(node, &progress);
mb2_set_overall_progress(progress);
}
}
static void mb2_multi_status_add_file_error(plist_t status_dict, const char *path, int error_code, const char *error_message)
{
if (!status_dict) return;
plist_t filedict = plist_new_dict();
plist_dict_set_item(filedict, "DLFileErrorString", plist_new_string(error_message));
plist_dict_set_item(filedict, "DLFileErrorCode", plist_new_uint(error_code));
plist_dict_set_item(status_dict, path, filedict);
}
static int errno_to_device_error(int errno_value)
{
switch (errno_value) {
case ENOENT:
return -6;
case EEXIST:
return -7;
case ENOTDIR:
return -8;
case EISDIR:
return -9;
case ELOOP:
return -10;
case EIO:
return -11;
case ENOSPC:
return -15;
default:
return -1;
}
}
static int mb2_handle_send_file(mobilebackup2_client_t mobilebackup2, const char *backup_dir, const char *path, plist_t *errplist)
{
uint32_t nlen = 0;
uint32_t pathlen = strlen(path);
uint32_t bytes = 0;
char *localfile = string_build_path(backup_dir, path, NULL);
char buf[32768];
#ifdef WIN32
struct _stati64 fst;
#else
struct stat fst;
#endif
FILE *f = NULL;
uint32_t slen = 0;
int errcode = -1;
int result = -1;
uint32_t length;
#ifdef WIN32
uint64_t total;
uint64_t sent;
#else
off_t total;
off_t sent;
#endif
mobilebackup2_error_t err;
/* send path length */
nlen = htobe32(pathlen);
err = mobilebackup2_send_raw(mobilebackup2, (const char*)&nlen, sizeof(nlen), &bytes);
if (err != MOBILEBACKUP2_E_SUCCESS) {
goto leave_proto_err;
}
if (bytes != (uint32_t)sizeof(nlen)) {
err = MOBILEBACKUP2_E_MUX_ERROR;
goto leave_proto_err;
}
/* send path */
err = mobilebackup2_send_raw(mobilebackup2, path, pathlen, &bytes);
if (err != MOBILEBACKUP2_E_SUCCESS) {
goto leave_proto_err;
}
if (bytes != pathlen) {
err = MOBILEBACKUP2_E_MUX_ERROR;
goto leave_proto_err;
}
#ifdef WIN32
if (_stati64(localfile, &fst) < 0)
#else
if (stat(localfile, &fst) < 0)
#endif
{
if (errno != ENOENT)
printf("%s: stat failed on '%s': %d\n", __func__, localfile, errno);
errcode = errno;
goto leave;
}
total = fst.st_size;
char *format_size = string_format_size(total);
PRINT_VERBOSE(1, "Sending '%s' (%s)\n", path, format_size);
free(format_size);
if (total == 0) {
errcode = 0;
goto leave;
}
f = fopen(localfile, "rb");
if (!f) {
printf("%s: Error opening local file '%s': %d\n", __func__, localfile, errno);
errcode = errno;
goto leave;
}
sent = 0;
do {
length = ((total-sent) < (long long)sizeof(buf)) ? (uint32_t)total-sent : (uint32_t)sizeof(buf);
/* send data size (file size + 1) */
nlen = htobe32(length+1);
memcpy(buf, &nlen, sizeof(nlen));
buf[4] = CODE_FILE_DATA;
err = mobilebackup2_send_raw(mobilebackup2, (const char*)buf, 5, &bytes);
if (err != MOBILEBACKUP2_E_SUCCESS) {
goto leave_proto_err;
}
if (bytes != 5) {
goto leave_proto_err;
}
/* send file contents */
size_t r = fread(buf, 1, sizeof(buf), f);
if (r <= 0) {
printf("%s: read error\n", __func__);
errcode = errno;
goto leave;
}
err = mobilebackup2_send_raw(mobilebackup2, buf, r, &bytes);
if (err != MOBILEBACKUP2_E_SUCCESS) {
goto leave_proto_err;
}
if (bytes != (uint32_t)r) {
printf("Error: sent only %d of %d bytes\n", bytes, (int)r);
goto leave_proto_err;
}
sent += r;
} while (sent < total);
fclose(f);
f = NULL;
errcode = 0;
leave:
if (errcode == 0) {
result = 0;
nlen = 1;
nlen = htobe32(nlen);
memcpy(buf, &nlen, 4);
buf[4] = CODE_SUCCESS;
mobilebackup2_send_raw(mobilebackup2, buf, 5, &bytes);
} else {
if (!*errplist) {
*errplist = plist_new_dict();
}
char *errdesc = strerror(errcode);
mb2_multi_status_add_file_error(*errplist, path, errno_to_device_error(errcode), errdesc);
length = strlen(errdesc);
nlen = htobe32(length+1);
memcpy(buf, &nlen, 4);
buf[4] = CODE_ERROR_LOCAL;
slen = 5;
memcpy(buf+slen, errdesc, length);
slen += length;
err = mobilebackup2_send_raw(mobilebackup2, (const char*)buf, slen, &bytes);
if (err != MOBILEBACKUP2_E_SUCCESS) {
printf("could not send message\n");
}
if (bytes != slen) {
printf("could only send %d from %d\n", bytes, slen);
}
}
leave_proto_err:
if (f)
fclose(f);
free(localfile);
return result;
}
static void mb2_handle_send_files(mobilebackup2_client_t mobilebackup2, plist_t message, const char *backup_dir)
{
uint32_t cnt;
uint32_t i = 0;
uint32_t sent;
plist_t errplist = NULL;
if (!message || (plist_get_node_type(message) != PLIST_ARRAY) || (plist_array_get_size(message) < 2) || !backup_dir) return;
plist_t files = plist_array_get_item(message, 1);
cnt = plist_array_get_size(files);
for (i = 0; i < cnt; i++) {
plist_t val = plist_array_get_item(files, i);
if (plist_get_node_type(val) != PLIST_STRING) {
continue;
}
char *str = NULL;
plist_get_string_val(val, &str);
if (!str)
continue;
if (mb2_handle_send_file(mobilebackup2, backup_dir, str, &errplist) < 0) {
free(str);
//printf("Error when sending file '%s' to device\n", str);
// TODO: perhaps we can continue, we've got a multi status response?!
break;
}
free(str);
}
/* send terminating 0 dword */
uint32_t zero = 0;
mobilebackup2_send_raw(mobilebackup2, (char*)&zero, 4, &sent);
if (!errplist) {
plist_t emptydict = plist_new_dict();
mobilebackup2_send_status_response(mobilebackup2, 0, NULL, emptydict);
plist_free(emptydict);
} else {
mobilebackup2_send_status_response(mobilebackup2, -13, "Multi status", errplist);
plist_free(errplist);
}
}
static int mb2_receive_filename(mobilebackup2_client_t mobilebackup2, char** filename)
{
uint32_t nlen = 0;
uint32_t rlen = 0;
do {
nlen = 0;
rlen = 0;
mobilebackup2_receive_raw(mobilebackup2, (char*)&nlen, 4, &rlen);
nlen = be32toh(nlen);
if ((nlen == 0) && (rlen == 4)) {
// a zero length means no more files to receive
return 0;
}
if (rlen == 0) {
// device needs more time, waiting...
continue;
}
if (nlen > 4096) {
// filename length is too large
printf("ERROR: %s: too large filename length (%d)!\n", __func__, nlen);
return 0;
}
if (*filename != NULL) {
free(*filename);
*filename = NULL;
}
*filename = (char*)malloc(nlen+1);
rlen = 0;
mobilebackup2_receive_raw(mobilebackup2, *filename, nlen, &rlen);
if (rlen != nlen) {
printf("ERROR: %s: could not read filename\n", __func__);
return 0;