diff options
| -rw-r--r-- | tools/iphonebackup.c | 293 |
1 files changed, 237 insertions, 56 deletions
diff --git a/tools/iphonebackup.c b/tools/iphonebackup.c index 19acc4e..f0cfa7a 100644 --- a/tools/iphonebackup.c +++ b/tools/iphonebackup.c @@ -44,6 +44,17 @@ enum cmd_mode { CMD_LEAVE }; +enum plist_format_t { + PLIST_FORMAT_XML, + PLIST_FORMAT_BINARY +}; + +enum device_link_file_status_t { + DEVICE_LINK_FILE_STATUS_NONE = 0, + DEVICE_LINK_FILE_STATUS_HUNK, + DEVICE_LINK_FILE_STATUS_LAST_HUNK +}; + static plist_t mobilebackup_factory_info_plist_new() { /* gather data from lockdown */ @@ -95,20 +106,50 @@ static plist_t mobilebackup_factory_info_plist_new() free(uuid_uppercase); free(uuid); - plist_t files = plist_new_dict(); /* FIXME: Embed files as <data> nodes */ + plist_t files = plist_new_dict(); plist_dict_insert_item(ret, "iTunes Files", files); plist_dict_insert_item(ret, "iTunes Version", plist_new_string("9.0.2")); + plist_free(root_node); + return ret; } -enum plist_format_t { - PLIST_FORMAT_XML, - PLIST_FORMAT_BINARY -}; +static void mobilebackup_info_update_last_backup_date(plist_t info_plist) +{ + GTimeVal tv = {0, 0}; + plist_t node = NULL; -static void buffer_to_filename(char *filename, char *buffer, uint32_t length) + if (!info_plist) + return; + + g_get_current_time(&tv); + node = plist_dict_get_item(info_plist, "Last Backup Date"); + plist_set_date_val(node, tv.tv_sec, tv.tv_usec); + + node = NULL; +} + +static void buffer_read_from_filename(const char *filename, char **buffer, uint32_t *length) +{ + FILE *f; + uint64_t size; + + f = fopen(filename, "rb"); + + fseek(f, 0, SEEK_END); + size = ftell(f); + rewind(f); + + *buffer = (char*)malloc(sizeof(char)*size); + fread(*buffer, sizeof(char), size, f); + fclose(f); + + *length = size; +} + +static void buffer_write_to_filename(const char *filename, const char *buffer, uint32_t length) { FILE *f; @@ -117,7 +158,32 @@ static void buffer_to_filename(char *filename, char *buffer, uint32_t length) fclose(f); } -static int plist_write_to_filename(plist_t plist, char *filename, enum plist_format_t format) +static int plist_read_from_filename(plist_t *plist, const char *filename) +{ + char *buffer = NULL; + uint32_t length; + + if (!filename) + return 0; + + buffer_read_from_filename(filename, &buffer, &length); + + if (!buffer) { + return 0; + } + + if (memcmp(buffer, "bplist00", 8) == 0) { + plist_from_bin(buffer, length, plist); + } else { + plist_from_xml(buffer, length, plist); + } + + free(buffer); + + return 1; +} + +static int plist_write_to_filename(plist_t plist, const char *filename, enum plist_format_t format) { char *buffer = NULL; uint32_t length; @@ -132,7 +198,7 @@ static int plist_write_to_filename(plist_t plist, char *filename, enum plist_for else return 0; - buffer_to_filename(filename, buffer, length); + buffer_write_to_filename(filename, buffer, length); free(buffer); @@ -183,17 +249,100 @@ static plist_t mobilebackup_factory_backup_file_received_new() return device_link_message_factory_process_message_new(node); } -static void mobilebackup_write_status(char *path, int status) +static gchar *mobilebackup_build_path(const char *backup_directory, const char *name, const char *extension) +{ + gchar *filename = g_strconcat(name, extension, NULL); + gchar *path = g_build_path(G_DIR_SEPARATOR_S, backup_directory, filename, NULL); + g_free(filename); + return path; +} + +static void mobilebackup_write_status(const 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); + gchar *file_path = mobilebackup_build_path(path, "Status", ".plist"); + 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); + status_plist = NULL; + + g_free(file_path); +} + +static int mobilebackup_info_is_current_device(plist_t info) +{ + plist_t value_node = NULL; + plist_t node = NULL; + plist_t root_node = NULL; + int ret = 0; + + if (!info) + return ret; + + if (plist_get_node_type(info) != PLIST_DICT) + return ret; + + /* get basic device information in one go */ + lockdownd_get_value(client, NULL, NULL, &root_node); + + /* verify UUID */ + value_node = plist_dict_get_item(root_node, "UniqueDeviceID"); + node = plist_dict_get_item(info, "Target Identifier"); + + if(plist_compare_node_value(value_node, node)) + ret = 1; + + /* verify SerialNumber */ + if (ret == 1) { + value_node = plist_dict_get_item(root_node, "SerialNumber"); + node = plist_dict_get_item(info, "Serial Number"); + + if(plist_compare_node_value(value_node, node)) + ret = 1; + else + ret = 0; + } + + plist_free(root_node); + root_node = NULL; + + value_node = NULL; + node = NULL; + + return ret; +} + +static int mobilebackup_delete_backup_file_by_hash(const char *backup_directory, const char *hash) +{ + int ret = 0; + gchar *path = mobilebackup_build_path(backup_directory, hash, ".mddata"); + printf("Removing \"%s\"... ", path); + if (!remove( path )) + ret = 1; + else + ret = 0; + + g_free(path); + + if (!ret) + return ret; + + path = mobilebackup_build_path(backup_directory, hash, ".mdinfo"); + printf("Removing \"%s\"... ", path); + if (!remove( path )) + ret = 1; + else + ret = 0; + + g_free(path); + + return ret; } /** @@ -229,13 +378,17 @@ int main(int argc, char *argv[]) uint16_t port = 0; uuid[0] = 0; int cmd = -1; + int is_full_backup = 0; char *backup_directory = NULL; struct stat st; plist_t node = NULL; plist_t node_tmp = NULL; + plist_t manifest_plist = NULL; + plist_t info_plist = NULL; char *buffer = NULL; uint64_t length = 0; uint64_t backup_total_size = 0; + enum device_link_file_status_t file_status; uint64_t c = 0; /* we need to exit cleanly on running backups and restores or we cause havok */ @@ -298,7 +451,7 @@ int main(int argc, char *argv[]) } /* restore directory must contain an Info.plist */ - char *info_path = g_build_path(G_DIR_SEPARATOR_S, backup_directory, "Info.plist", NULL); + char *info_path = mobilebackup_build_path(backup_directory, "Info", ".plist"); if (cmd == CMD_RESTORE) { if (stat(info_path, &st) != 0) { g_free(info_path); @@ -347,27 +500,45 @@ int main(int argc, char *argv[]) /* 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); + /* Info.plist (Device infos, IC-Info.sidb, photos, app_ids, iTunesPrefs) */ + + /* read existing Info.plist or create new one */ + if (stat(info_path, &st) == 0) { + printf("Reading Info.plist from existing backup.\n"); + plist_read_from_filename(&info_plist, info_path); + + if(!is_full_backup) { + /* update the last backup time within Info.plist */ + mobilebackup_info_update_last_backup_date(info_plist); + remove(info_path); + plist_write_to_filename(info_plist, info_path, PLIST_FORMAT_XML); + } + } else { + printf("Creating Info.plist for new backup.\n"); + info_plist = mobilebackup_factory_info_plist_new(); + plist_write_to_filename(info_plist, info_path, PLIST_FORMAT_XML); + is_full_backup = 1; + } + g_free(info_path); + /* Manifest.plist (backup manifest (backup state)) */ + char *manifest_path = mobilebackup_build_path(backup_directory, "Manifest", ".plist"); + /* read the last Manifest.plist if the current backup is for this device */ + if (!is_full_backup && mobilebackup_info_is_current_device(info_plist)) { + printf("Reading existing Manifest.\n"); + plist_read_from_filename(&manifest_plist, manifest_path); + } + + plist_free(info_plist); + info_plist = NULL; + /* 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); @@ -375,8 +546,10 @@ int main(int argc, char *argv[]) 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")); @@ -389,6 +562,7 @@ int main(int argc, char *argv[]) /* 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); @@ -397,6 +571,10 @@ int main(int argc, char *argv[]) printf("Device accepts manifest and will send backup data now...\n"); backup_ok = 1; printf("Acknowledging...\n"); + if (is_full_backup) + printf("Full backup mode.\n"); + else + printf("Incremental backup mode.\n"); printf("Please wait. Device prepares backup data...\n"); /* send it back for ACK */ mobilebackup_send(mobilebackup, message); @@ -427,9 +605,13 @@ int main(int argc, char *argv[]) char *format_size = NULL; gboolean is_manifest = FALSE; uint8_t b = 0; + + /* process series of DLSendFile messages */ do { mobilebackup_receive(mobilebackup, &message); node = plist_array_get_item(message, 0); + + /* get out if we don't get a DLSendFile */ if (plist_strcmp(node, "DLSendFile")) break; @@ -446,9 +628,10 @@ int main(int argc, char *argv[]) } } - /* print out "received" if DLFileStatusKey is 2 (last file piece) */ + /* check DLFileStatusKey (codes: 1 = Hunk, 2 = Last Hunk) */ node = plist_dict_get_item(node_tmp, "DLFileStatusKey"); plist_get_uint_val(node, &c); + file_status = c; /* get source filename */ node = plist_dict_get_item(node_tmp, "BackupManifestKey"); @@ -458,25 +641,26 @@ int main(int argc, char *argv[]) } is_manifest = (b == 1) ? TRUE: FALSE; - /* increased received size for each completed file */ - if ((c == 2) && (!is_manifest)) { + /* check if we completed a file */ + if ((file_status == DEVICE_LINK_FILE_STATUS_LAST_HUNK) && (!is_manifest)) { /* get source filename */ node = plist_dict_get_item(node_tmp, "DLFileSource"); plist_get_string_val(node, &filename_source); + /* increase received size */ 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) @@ -487,13 +671,20 @@ int main(int argc, char *argv[]) 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); + + filename_mdinfo = mobilebackup_build_path(backup_directory, file_path, ".mdinfo"); + + /* remove any existing file */ + if (stat(filename_mdinfo, &st) != 0) + remove(filename_mdinfo); + 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); } + + file_index++; } /* save <hash>.mddata */ @@ -502,23 +693,26 @@ int main(int argc, char *argv[]) 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 = mobilebackup_build_path(backup_directory, file_path, is_manifest ? NULL: ".mddata"); + + /* if this is the first hunk, remove any existing file */ + if (stat(filename_mddata, &st) != 0) + remove(filename_mddata); - filename_mddata = g_build_path(G_DIR_SEPARATOR_S, backup_directory, file_ext, NULL); + /* get file data hunk */ node_tmp = plist_array_get_item(message, 1); plist_get_data_val(node_tmp, &buffer, &length); - buffer_to_filename(filename_mddata, buffer, length); + buffer_write_to_filename(filename_mddata, buffer, length); /* activate currently sent manifest */ - if ((c == 2) && (is_manifest)) { + if ((file_status == DEVICE_LINK_FILE_STATUS_LAST_HUNK) && (is_manifest)) { rename(filename_mddata, manifest_path); } + free(buffer); buffer = NULL; + g_free(filename_mddata); } @@ -531,7 +725,7 @@ int main(int argc, char *argv[]) plist_free(message); message = NULL; - if (c == 2) { + if (file_status == DEVICE_LINK_FILE_STATUS_LAST_HUNK) { if (!is_manifest) printf("DONE\n"); @@ -566,20 +760,7 @@ int main(int argc, char *argv[]) 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 )) { + if (mobilebackup_delete_backup_file_by_hash(backup_directory, file_path)) { printf("DONE\n"); } else printf("FAILED\n"); @@ -600,7 +781,7 @@ int main(int argc, char *argv[]) } if (backup_ok) { - /* create: Status.plist (Info on how the backup process turned out) */ + /* Status.plist (Info on how the backup process turned out) */ printf("Backup Successful.\n"); mobilebackup_write_status(backup_directory, 1); } else { |