diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/Makefile.am | 1 | ||||
| -rw-r--r-- | src/mobilebackup2.c | 396 | ||||
| -rw-r--r-- | src/mobilebackup2.h | 31 |
3 files changed, 428 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 70dc895..f42ac08 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -21,4 +21,5 @@ libimobiledevice_la_SOURCES = idevice.c idevice.h \ mobilesync.c mobilesync.h\ mobilebackup.c mobilebackup.h\ house_arrest.c house_arrest.h\ + mobilebackup2.c mobilebackup2.h\ restore.c restore.h diff --git a/src/mobilebackup2.c b/src/mobilebackup2.c new file mode 100644 index 0000000..7b6ea33 --- /dev/null +++ b/src/mobilebackup2.c @@ -0,0 +1,396 @@ +/* + * mobilebackup2.c + * Contains functions for the built-in MobileBackup2 client (iOS4+ only) + * + * Copyright (c) 2010 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 + */ + +#include <plist/plist.h> +#include <string.h> +#include <stdlib.h> + +#include "mobilebackup2.h" +#include "device_link_service.h" +#include "debug.h" + +#define MBACKUP2_VERSION_INT1 100 +#define MBACKUP2_VERSION_INT2 0 + +#define IS_FLAG_SET(x, y) ((x & y) == y) + +/** + * Convert an device_link_service_error_t value to an mobilebackup2_error_t value. + * Used internally to get correct error codes from the underlying + * device_link_service. + * + * @param err An device_link_service_error_t error code + * + * @return A matching mobilebackup2_error_t error code, + * MOBILEBACKUP2_E_UNKNOWN_ERROR otherwise. + */ +static mobilebackup2_error_t mobilebackup2_error(device_link_service_error_t err) +{ + switch (err) { + case DEVICE_LINK_SERVICE_E_SUCCESS: + return MOBILEBACKUP2_E_SUCCESS; + case DEVICE_LINK_SERVICE_E_INVALID_ARG: + return MOBILEBACKUP2_E_INVALID_ARG; + case DEVICE_LINK_SERVICE_E_PLIST_ERROR: + return MOBILEBACKUP2_E_PLIST_ERROR; + case DEVICE_LINK_SERVICE_E_MUX_ERROR: + return MOBILEBACKUP2_E_MUX_ERROR; + case DEVICE_LINK_SERVICE_E_BAD_VERSION: + return MOBILEBACKUP2_E_BAD_VERSION; + default: + break; + } + return MOBILEBACKUP2_E_UNKNOWN_ERROR; +} + +/** + * Connects to the mobilebackup2 service on the specified device. + * + * @param device The device to connect to. + * @param port Destination port (usually given by lockdownd_start_service). + * @param client Pointer that will be set to a newly allocated + * mobilebackup2_client_t upon successful return. + * + * @return MOBILEBACKUP2_E_SUCCESS on success, MOBILEBACKUP2_E_INVALID ARG + * if one or more parameter is invalid, or MOBILEBACKUP2_E_BAD_VERSION + * if the mobilebackup2 version on the device is newer. + */ +mobilebackup2_error_t mobilebackup2_client_new(idevice_t device, uint16_t port, + mobilebackup2_client_t * client) +{ + if (!device || port == 0 || !client || *client) + return MOBILEBACKUP2_E_INVALID_ARG; + + device_link_service_client_t dlclient = NULL; + mobilebackup2_error_t ret = mobilebackup2_error(device_link_service_client_new(device, port, &dlclient)); + if (ret != MOBILEBACKUP2_E_SUCCESS) { + return ret; + } + + mobilebackup2_client_t client_loc = (mobilebackup2_client_t) malloc(sizeof(struct mobilebackup2_client_private)); + client_loc->parent = dlclient; + + /* perform handshake */ + ret = mobilebackup2_error(device_link_service_version_exchange(dlclient, MBACKUP2_VERSION_INT1, MBACKUP2_VERSION_INT2)); + if (ret != MOBILEBACKUP2_E_SUCCESS) { + debug_info("version exchange failed, error %d", ret); + mobilebackup2_client_free(client_loc); + return ret; + } + + *client = client_loc; + + return ret; +} + +/** + * Disconnects a mobilebackup2 client from the device and frees up the + * mobilebackup2 client data. + * + * @param client The mobilebackup2 client to disconnect and free. + * + * @return MOBILEBACKUP2_E_SUCCESS on success, or MOBILEBACKUP2_E_INVALID_ARG + * if client is NULL. + */ +mobilebackup2_error_t mobilebackup2_client_free(mobilebackup2_client_t client) +{ + if (!client) + return MOBILEBACKUP2_E_INVALID_ARG; + mobilebackup2_error_t err = MOBILEBACKUP2_E_SUCCESS; + if (client->parent) { + device_link_service_disconnect(client->parent); + err = mobilebackup2_error(device_link_service_client_free(client->parent)); + } + free(client); + return err; +} + +/** + * Sends a backup message plist. + * + * @param client The connected MobileBackup client to use. + * @param message The message to send. This will be inserted into the request + * plist as value for MessageName. If this parameter is NULL, + * the plist passed in the options parameter will be sent directly. + * @param options Additional options as PLIST_DICT to add to the request. + * The MessageName key with the value passed in the message parameter + * will be inserted into this plist before sending it. This parameter + * can be NULL if message is not NULL. + */ +static mobilebackup2_error_t internal_mobilebackup2_send_message(mobilebackup2_client_t client, const char *message, plist_t options) +{ + if (!client || !client->parent || (!message && !options)) + return MOBILEBACKUP2_E_INVALID_ARG; + + if (options && (plist_get_node_type(options) != PLIST_DICT)) { + return MOBILEBACKUP2_E_INVALID_ARG; + } + + mobilebackup2_error_t err; + + if (message) { + plist_t dict = NULL; + if (options) { + dict = plist_copy(options); + } else { + dict = plist_new_dict(); + } + plist_dict_insert_item(dict, "MessageName", plist_new_string(message)); + + /* send it as DLMessageProcessMessage */ + err = mobilebackup2_error(device_link_service_send_process_message(client->parent, dict)); + plist_free(dict); + } else { + err = mobilebackup2_error(device_link_service_send_process_message(client->parent, options)); + } + if (err != MOBILEBACKUP2_E_SUCCESS) { + debug_info("ERROR: Could not send message '%s' (%d)!", message, err); + } + return err; +} + +/** + * Receives a plist from the device and checks if the value for the + * MessageName key matches the value passed in the message parameter. + * + * @param client The connected MobileBackup client to use. + * @param message The expected message to check. + * @param result Pointer to a plist_t that will be set to the received plist + * for further processing. The caller has to free it using plist_free(). + * Note that it will be set to NULL if the operation itself fails due to + * a communication or plist error. + * If this parameter is NULL, it will be ignored. + * + * @return MOBILEBACKUP2_E_SUCCESS on success, MOBILEBACKUP2_E_INVALID_ARG if + * client or message is invalid, MOBILEBACKUP2_E_REPLY_NOT_OK if the + * expected message could not be received, MOBILEBACKUP2_E_PLIST_ERROR if + * the received message is not a valid backup message plist (i.e. the + * MessageName key is not present), or MOBILEBACKUP2_E_MUX_ERROR + * if a communication error occurs. + */ +static mobilebackup2_error_t internal_mobilebackup2_receive_message(mobilebackup2_client_t client, const char *message, plist_t *result) +{ + if (!client || !client->parent || !message) + return MOBILEBACKUP2_E_INVALID_ARG; + + if (result) + *result = NULL; + mobilebackup2_error_t err; + + plist_t dict = NULL; + + /* receive DLMessageProcessMessage */ + err = mobilebackup2_error(device_link_service_receive_process_message(client->parent, &dict)); + if (err != MOBILEBACKUP2_E_SUCCESS) { + goto leave; + } + + plist_t node = plist_dict_get_item(dict, "MessageName"); + if (!node) { + debug_info("ERROR: MessageName key not found in plist!"); + err = MOBILEBACKUP2_E_PLIST_ERROR; + goto leave; + } + + char *str = NULL; + plist_get_string_val(node, &str); + if (str && (strcmp(str, message) == 0)) { + err = MOBILEBACKUP2_E_SUCCESS; + } else { + debug_info("ERROR: MessageName value does not match '%s'!", message); + err = MOBILEBACKUP2_E_REPLY_NOT_OK; + } + if (str) + free(str); + + if (result) { + *result = dict; + dict = NULL; + } +leave: + if (dict) { + plist_free(dict); + } + + return err; +} + +/** + * TODO + */ +mobilebackup2_error_t mobilebackup2_receive_message(mobilebackup2_client_t client, plist_t *msg_plist, char **dlmessage) +{ + return mobilebackup2_error(device_link_service_receive_message(client->parent, msg_plist, dlmessage)); +} + +mobilebackup2_error_t mobilebackup2_send_raw(mobilebackup2_client_t client, const char *data, uint32_t length, uint32_t *bytes) +{ + if (!client || !client->parent) + return MOBILEBACKUP2_E_INVALID_ARG; + + *bytes = 0; + + idevice_connection_t conn = client->parent->parent->connection; + + int bytes_loc = 0; + uint32_t sent = 0; + do { + bytes_loc = 0; + idevice_connection_send(conn, data+sent, length-sent, (uint32_t*)&bytes_loc); + if (bytes_loc <= 0) + break; + sent += bytes_loc; + } while (sent < length); + if (sent > 0) { + *bytes = sent; + return MOBILEBACKUP2_E_SUCCESS; + } else { + return MOBILEBACKUP2_E_MUX_ERROR; + } +} + +mobilebackup2_error_t mobilebackup2_receive_raw(mobilebackup2_client_t client, char *data, uint32_t length, uint32_t *bytes) +{ + if (!client || !client->parent) + return MOBILEBACKUP2_E_INVALID_ARG; + + idevice_connection_t conn = client->parent->parent->connection; + + *bytes = 0; + + int bytes_loc = 0; + uint32_t received = 0; + do { + bytes_loc = 0; + idevice_connection_receive(conn, data+received, length-received, (uint32_t*)&bytes_loc); + if (bytes_loc <= 0) break; + received += bytes_loc; + } while (received < length); + if (received > 0) { + *bytes = received; + return MOBILEBACKUP2_E_SUCCESS; + } else if (received == 0) { + return MOBILEBACKUP2_E_SUCCESS; + } else { + return MOBILEBACKUP2_E_MUX_ERROR; + } +} + +/** + * TODO + */ +mobilebackup2_error_t mobilebackup2_version_exchange(mobilebackup2_client_t client) +{ + if (!client || !client->parent) + return MOBILEBACKUP2_E_INVALID_ARG; + + plist_t dict = plist_new_dict(); + plist_t array = plist_new_array(); + plist_array_append_item(array, plist_new_real(2.0)); + plist_array_append_item(array, plist_new_real(2.1)); + plist_dict_insert_item(dict, "SupportedProtocolVersions", array); + + mobilebackup2_error_t err = internal_mobilebackup2_send_message(client, "Hello", dict); + plist_free(dict); + + if (err != MOBILEBACKUP2_E_SUCCESS) + goto leave; + + dict = NULL; + err = internal_mobilebackup2_receive_message(client, "Response", &dict); + if (err != MOBILEBACKUP2_E_SUCCESS) + goto leave; + + plist_t node = plist_dict_get_item(dict, "ErrorCode"); + if (!node || (plist_get_node_type(node) != PLIST_UINT)) { + err = MOBILEBACKUP2_E_PLIST_ERROR; + goto leave; + } + + uint64_t val = 0; + plist_get_uint_val(node, &val); + + if (val != 0) { + err = MOBILEBACKUP2_E_REPLY_NOT_OK; + goto leave; + } + + node = plist_dict_get_item(dict, "ProtocolVersion"); + if (!node || (plist_get_node_type(node) != PLIST_REAL)) { + err = MOBILEBACKUP2_E_PLIST_ERROR; + goto leave; + } + + double rval = 0.0; + plist_get_real_val(node, &rval); + + debug_info("using protocol version %f\n", rval); + + // TODO version check ?? + // if version does not match + // err = MOBILEBACKUP2_E_BAD_VERSION + +leave: + if (dict) + plist_free(dict); + return err; +} + +/** + * TODO + */ +mobilebackup2_error_t mobilebackup2_request_backup(mobilebackup2_client_t client, const char *uuid) +{ + if (!client || !client->parent) + return MOBILEBACKUP2_E_INVALID_ARG; + + plist_t dict = plist_new_dict(); + plist_dict_insert_item(dict, "TargetIdentifier", plist_new_string(uuid)); + mobilebackup2_error_t err = internal_mobilebackup2_send_message(client, "Backup", dict); + plist_free(dict); + + return err; +} + +mobilebackup2_error_t mobilebackup2_send_status_response(mobilebackup2_client_t client, int status_code, const char *status1, plist_t status2) +{ + if (!client || !client->parent) + return MOBILEBACKUP2_E_INVALID_ARG; + + plist_t array = plist_new_array(); + plist_array_append_item(array, plist_new_string("DLMessageStatusResponse")); + plist_array_append_item(array, plist_new_uint(status_code)); + if (status1) { + plist_array_append_item(array, plist_new_string(status1)); + } else { + plist_array_append_item(array, plist_new_string("___EmptyParameterString___")); + } + if (status2) { + plist_array_append_item(array, plist_copy(status2)); + } else { + plist_array_append_item(array, plist_new_string("___EmptyParameterString___")); + } + + mobilebackup2_error_t err = mobilebackup2_error(device_link_service_send(client->parent, array)); + plist_free(array); + + return err; +} diff --git a/src/mobilebackup2.h b/src/mobilebackup2.h new file mode 100644 index 0000000..f96e400 --- /dev/null +++ b/src/mobilebackup2.h @@ -0,0 +1,31 @@ + /* + * mobilebackup2.h + * Definitions for the mobilebackup2 service (iOS4+) + * + * Copyright (c) 2010 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 + */ +#ifndef MOBILEBACKUP2_H +#define MOBILEBACKUP2_H + +#include "libimobiledevice/mobilebackup2.h" +#include "device_link_service.h" + +struct mobilebackup2_client_private { + device_link_service_client_t parent; +}; + +#endif |